This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A065701 #10 Oct 17 2019 16:31:48 %S A065701 11958,44118,88740,97986,108438,184416,245520,347628,348030,418380, %T A065701 516870,542598,546618,590436,637470,674856,679680,767316,809526, %U A065701 817566,818370,888720,904800,914046,930930,938568,1006506,1020978,1047510,1070826,1081278,1155246,1209516 %N A065701 Numbers m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,67. %H A065701 Amiram Eldar, <a href="/A065701/b065701.txt">Table of n, a(n) for n = 1..10000</a> %F A065701 am+1, bm+1, cm+1 are primes and am|(N-1), bm|(N-1), cm|(N-1). %t A065701 CarmichaelNbrQ[n_] := ! PrimeQ@ n && Mod[n, CarmichaelLambda@ n] == 1; Select[ Range@ 1250000, PrimeQ[# + 1] && PrimeQ[2# + 1] && PrimeQ[67# + 1] && CarmichaelNbrQ[(# + 1)(2# + 1)(67# + 1)] &] (* _Robert G. Wilson v_, Aug 23 2012 *) %Y A065701 Cf. A064238-A064262, A065695, A065696, A065697, A065698, A065699, A065700, A065702, A065703, A087788. %K A065701 nonn %O A065701 1,1 %A A065701 Harvey Dubner (harvey(AT)dubner.com), Nov 14 2001