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A103150
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Record values in A130971.
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4
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2, 3, 13, 23, 41, 47, 73, 97, 131, 163, 191, 193, 239, 277, 307, 353, 373, 379, 449, 487, 601, 631, 643, 709, 761, 811, 823, 881, 911, 1013, 1033, 1091, 1109, 1193, 1213, 1217, 1291, 1301, 1319, 1373, 1423, 1447, 1483, 1601, 1621, 1721, 1823, 1867, 1873, 1901, 4021, 5011, 266111, 4294978733
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Are the values A103150(53)=266111 and A103150(54)=4294978733 correct? -- Antti Karttunen, Jun 19 2007.
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LINKS
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FORMULA
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EXAMPLE
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a(53) = 266111 = 2^18 - 3967, where 3967 = prime(549).
a(54) = 4294978733 = 2^32 - 11437, where 11437 = prime(1379).
a(55) = 37778931862957161731461 = 2^75 - 21893, where 21893 = prime(2456).
a(56) = 37778931862957161765331 = 2^75 - 55763, where 55763 = prime(5658).
a(57) = 2787593149816327892691964784081045188361473 = 2^141 - 113921, where 113921 = prime(10782).
a(58) = 2^835 - 983063, where 983063 = prime(77280). (252 digits)
a(59) = 2^1322 - 3993547, where 3993547 = prime(282738). (398 digits)
a(60) = 2^5945 - 42565109, where 42565109 = prime(2579884). (1790 digits)
a(61) = 2^16116 - 52274777, where 52274777 = prime(3129277). (4852 digits)
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MATHEMATICA
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pmin = 0; pm0 = 2^16384; mpm =0; ppm = 0; mcm = 0; pcm = 0; p = 1; While[pmin < pm0, pmin = pm0; = 0; nu2 = 1; cm = nu2 - p; cp = nu2 + p; While[(n < 16383) && (cm < pmin), If[(cp < pmin) && PrimeQ[cp], pmin = cp]; acm = Abs[cm]; If[(mpm < pmin) && PrimeQ[p], mpm = pmin; ppm = p; Save["pinc.txt", {mpm, ppm}]]; p = p + 2]
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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Edited, Scheme-code added and starting offset changed from 0 to 1 by Antti Karttunen, Jun 19 2007
Confirmed a(1)-a(54), extend to a(61) by Ray Chandler, Aug 06 2010
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STATUS
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approved
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