The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A145381

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Prime numbers p such that p^2 is a concatenation of decimal representations of m and m-1 for some integer m.
(history; published version)

#4 by Russ Cox at Fri Mar 30 17:27:01 EDT 2012

AUTHOR

_Max Alekseyev (maxale(AT)gmail.com), _, Oct 09 2008

Discussion

Fri Mar 30

17:27

OEIS Server: https://oeis.org/edit/global/140

#3 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

Max Alekseyev. <a href="/A145381/b145381.txt">Table of n, a(n) for n = 1..96</a>

KEYWORD

base,nonn,new

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

LINKS

Max Alekseyev. <a href="http://www.research.att.com/~njas/sequences/b145381.txt">Table of n, a(n) for n = 1..96</a>

KEYWORD

base,nonn,new

AUTHOR

Max Alekseyev (maxalmaxale(AT)cs.ucsdgmail.educom), Oct 09 2008

#1 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

NAME

Prime numbers p such that p^2 is a concatenation of decimal representations of m and m-1 for some integer m.

DATA

9901, 99990001, 999999000001, 9999999900000001, 811451682377384625400019885321, 666809750614092756440997454321145572124297

OFFSET

1,1

LINKS

Max Alekseyev. <a href="http://www.research.att.com/~njas/sequences/b145381.txt">Table of n, a(n) for n = 1..96</a>

CROSSREFS

Prime elements of A054216.

KEYWORD

base,nonn

AUTHOR

Max Alekseyev (maxal(AT)cs.ucsd.edu), Oct 09 2008

STATUS

approved