The On-Line Encyclopedia of Integer Sequences (OEIS)

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Revision History for A154847

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A154847

Decimal expansion of log_2 (17).
(history; published version)

#8 by Charles R Greathouse IV at Mon Aug 21 09:50:20 EDT 2023

STATUS

editing

approved

#7 by Charles R Greathouse IV at Mon Aug 21 09:50:03 EDT 2023

LINKS

<a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

STATUS

approved

editing

#6 by Joerg Arndt at Fri Aug 30 02:55:07 EDT 2013

STATUS

proposed

approved

#5 by Vincenzo Librandi at Thu Aug 29 14:23:03 EDT 2013

STATUS

editing

proposed

#4 by Vincenzo Librandi at Thu Aug 29 14:22:52 EDT 2013

LINKS

Vincenzo Librandi, <a href="/A154847/b154847.txt">Table of n, a(n) for n = 1..1000</a>

MATHEMATICA

RealDigits[Log[2, 17], 10, 100][[1]] (* Vincenzo Librandi, Aug 29 2013 *)

CROSSREFS

Cf. decimal expansion of log_2(m): A020857 (m=3), A020858 (m=5), A020859 (m=6), A020860 (m=7), A020861 (m=9), A020862 (m=10), A020863 (m=11), A020864 (m=12), A152590 (m=13), A154462 (m=14), A154540 (m=15), this sequence, A154905 (m=18), A154995 (m=19), A155172 (m=20), A155536 (m=21), A155693 (m=22), A155793 (m=23), A155921 (m=24).

STATUS

approved

editing

#3 by Russ Cox at Fri Mar 30 16:51:14 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com), _, Oct 30 2009

Discussion

Fri Mar 30

16:51

OEIS Server: https://oeis.org/edit/global/110

#2 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

List of triples (p, n, q) where (p, q) is the pair of prime numbers that are equidistant from and nearest to n, or only n if there is no such pair.

Decimal expansion of log_2 (17).

DATA

4, 0, 8, 7, 4, 6, 2, 8, 4, 1, 2, 5, 0, 3, 3, 9, 4, 0, 8, 2, 5, 4, 0, 6, 6, 0, 1, 0, 8, 1, 0, 4, 0, 4, 3, 5, 4, 0, 1, 1, 2, 6, 7, 5, 2, 8, 2, 3, 4, 4, 8, 2, 0, 6, 8, 8, 1, 2, 6, 6, 0, 9, 0, 6, 4, 3, 8, 6, 6, 9, 6, 5, 0, 9, 0, 4, 7, 3, 8, 2, 0, 6, 8, 2, 9, 7, 11, 3, 4, 3, 1, 5, 1, 8, 4, 3, 6, 8, 11, 7, 9, 11, 4, 2, 7

OFFSET

1,21

EXAMPLE

Array begins:

........... 1

........... 2

........... 3

......... 3 4 5

....... 3 . 5 . 7

......... 5 6 7

... 3 . . . 7 . . . 11

..... 5 . . 8 . . 11

....... 7 . 9 . 11

..... 7 . .10 . . 13

4.0874628412503394082540660108104043540112672823448206881266...

CROSSREFS

Cf. A000040, A154720, A154721, A154722, A154723, A154724, A154725, A154726, A154727, A154800, A154801, A154802, A154803, A154845, A145846, A145848.

KEYWORD

more,nonn,tabf,new

nonn,cons

AUTHOR

Omar EN. J. A. Pol Sloane (infonjas(AT)polprimosresearch.att.com), Jan 16 Oct 30 2009

#1 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

NAME

List of triples (p, n, q) where (p, q) is the pair of prime numbers that are equidistant from and nearest to n, or only n if there is no such pair.

DATA

1, 2, 3, 3, 4, 5, 3, 5, 7, 5, 6, 7, 3, 7, 11, 5, 8, 11, 7, 9, 11, 7

OFFSET

1,2

EXAMPLE

Array begins:

........... 1

........... 2

........... 3

......... 3 4 5

....... 3 . 5 . 7

......... 5 6 7

... 3 . . . 7 . . . 11

..... 5 . . 8 . . 11

....... 7 . 9 . 11

..... 7 . .10 . . 13

CROSSREFS

Cf. A000040, A154720, A154721, A154722, A154723, A154724, A154725, A154726, A154727, A154800, A154801, A154802, A154803, A154845, A145846, A145848.

KEYWORD

more,nonn,tabf

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Jan 16 2009

STATUS

approved