|
%I #41 Sep 15 2023 04:22:34
%S 2,11,101,7,11,13,73,137,11,9091,101,9901,11,909091,17,5882353,7,11,
%T 13,19,52579,101,3541,27961,11,11,23,4093,8779,73,137,99990001,11,859,
%U 1058313049,29,101,281,121499449,7,11,13,211,241,2161,9091,353,449,641,1409,69857
%N Irregular table read by rows: row n lists prime factors of 10^n +1, with multiplicity.
%C Except for 2, all these primes are in A028416, and all the primes in A028416 appear here. - _Davide Rotondo_, Aug 12 2023
%D J. Brillhart et al., Factorizations of b^n +- 1. Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 2nd edition, 1985; and later supplements.
%H Ray Chandler, <a href="/A001271/b001271.txt">Rows n=0..310, flattened</a> (from Kamada link)
%H J. Brillhart et al., <a href="http://dx.doi.org/10.1090/conm/022">Factorizations of b^n +- 1</a>, Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 3rd edition, 2002.
%H Makoto Kamada, <a href="https://stdkmd.net/nrr/repunit/10001.htm">Factorizations of 100...001</a>.
%H S. S. Wagstaff, Jr., <a href="http://www.cerias.purdue.edu/homes/ssw/cun/index.html">The Cunningham Project</a>
%e Table begins:
%e 2;
%e 11;
%e 101,
%e 7, 11, 13;
%e 73, 137;
%e 11, 9091;
%e 101, 9901;
%e 11, 909091;
%e 17, 5882353;
%e ...
%Y Cf. A028416, A057934, A062397.
%K nonn,tabf
%O 0,1
%A _N. J. A. Sloane_, revised Jul 13 2009
%E Term ordering corrected by _Sean A. Irvine_, Apr 11 2012
%E Minor edits to description by _Ray Chandler_, May 02 2017
|
