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 A112428 #8 Apr 14 2015 22:52:16 %S A112428 825265,1050985,9890881,10877581,12945745,13992265,16778881,18162001, %T A112428 27336673,28787185,31146661,36121345,37167361,40280065,41298985, %U A112428 41341321,41471521,47006785,67371265,67994641,69331969,74165065 %N A112428 Carmichael numbers equal to the product of 5 primes. %C A112428 A subsequence is given by (6n+1)*(12n+1)*(18n+1)*(36n+1)*(72n+1) with n in A206349. - _M. F. Hasler_, Apr 14 2015 %H A112428 R. J. Mathar, <a href="/A112428/b112428.txt">Table of n, a(n) for n = 1..14938</a> %F A112428 A112428 = A002997 intersect A014614. - _M. F. Hasler_, Apr 14 2015 %e A112428 a(1)=825265=5*7*17*19*73 %o A112428 (PARI) is_A112428(n)=bigomega(n)==5&&is_A002997(n) \\ _M. F. Hasler_, Apr 14 2015 %Y A112428 Cf. A002997, A014614, A206349. %Y A112428 Cf. A087788, A141711, A074379, A112429 - A112432, A006931. %K A112428 easy,nonn %O A112428 1,1 %A A112428 _Shyam Sunder Gupta_, Dec 11 2005 %E A112428 Crossrefs added by _M. F. Hasler_, Apr 14 2015