Revision History for A218100
(Underlined text is an addition;
strikethrough text is a deletion.)
Showing entries 1-10
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#19 by N. J. A. Sloane at Sun Apr 17 09:12:07 EDT 2016
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#18 by N. J. A. Sloane at Sun Apr 17 09:12:03 EDT 2016
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| COMMENTS
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This is identically computed as in the comments ofin A217379, but limited to prime values. The same rationale for declaring that missed records are extremely unlikely holds, but always with the caveat exists that astronomically rare events do occur. The power for a(25), having 219 digits, is a full 30 digits longer than that for a(24). The sequence of exponents is 168, 106, 61, 44, 50, 42, 36, 39, 20, 21, 21, 27, 23, 21, 21, 21, 22, 23, 23, 22, 20, 20, 21 and 24.
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| EXAMPLE
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The below PARI program below is initiated with the reasonably well -known casevalue 2^29 which havinghas one copy of each digit save one. Otherwise, see A217379 for examples that might reasonably appear here.
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approved
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#17 by Joerg Arndt at Thu Mar 20 09:23:35 EDT 2014
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#16 by Joerg Arndt at Thu Mar 20 09:23:24 EDT 2014
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| PROG
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PARI/GP:
{
(PARI)
{ rec=2^29; p=2;
next())()) }
}
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proposed
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#15 by Jon E. Schoenfield at Thu Mar 20 09:09:28 EDT 2014
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#14 by Jon E. Schoenfield at Thu Mar 20 09:09:26 EDT 2014
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| EXTENSIONS
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a(22)-a(24) added by James G. Merickel, 22 Nov 22 2012
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approved
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#13 by Charles R Greathouse IV at Thu Nov 22 11:53:03 EST 2012
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#12 by James G. Merickel at Thu Nov 22 07:10:03 EST 2012
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#11 by James G. Merickel at Thu Nov 22 07:07:44 EST 2012
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| DATA
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2, 3, 7, 19, 23, 103, 271, 349, 91943, 118147, 133447, 165541, 1399399, 6161527, 12740363, 12789323, 20019953, 27793541, 29536943, 92364991, 653778547, 868088981, 988438109, 1274902129
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| COMMENTS
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This is identically computed as in the comments of A217379, but limited to prime values. The same rationale for declaring missed records extremely unlikely holds, but always the caveat exists that astronomically rare events do occur. The largest power here isfor ofa(25), having 176219 digits, as compared with 217 for theis searcha notfull restricted30 todigits beinglonger ofthan primes (asthat offor datea(24). The sequence of exponents is 168, 106, 61, 44, 50, 42, 36, 39, 20, 21, 21, 27, 23, 21, 21, 21, 22, 23, 23, 22, 20, 20, 21 and 2224.
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| EXTENSIONS
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a(22)-a(24) added by James G. Merickel, 22 Nov 2012
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| STATUS
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approved
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Discussion
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| Thu Nov 22
| 07:10
| James G. Merickel: 4 more terms, with COMMENTS modified by inclusion of exponents and by changing comparison to that between last two terms (Giovanni Resta has added several terms to the cross-referenced).
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#10 by T. D. Noe at Mon Oct 22 16:14:52 EDT 2012
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