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 A139156 #11 Oct 14 2024 01:38:13
%S A139156 81,561,4481,40321,403201,4435201,53222401,691891201,9686476801,
%T A139156 145297152001,2324754432001,39520825344001,711374856192001,
%U A139156 13516122267648001,270322445352960001,5676771352412160001
%N A139156 a(n) = (n!+9)/9.
%H A139156 Amiram Eldar, <a href="/A139156/b139156.txt">Table of n, a(n) for n = 6..450</a>
%t A139156 Table[(n! + 9)/9, {n, 6, 30}]
%Y A139156 Cf. A007749, A020458, A082672, A089085, A089130, A117141, A139056-A139066, A139068, A137390, A139070-A139075, A139148-A139157, A139159, A139160, A139161, A139162.
%K A139156 nonn
%O A139156 6,1
%A A139156 _Artur Jasinski_, Apr 11 2008
%E A139156 Name corrected by _Amiram Eldar_, Oct 14 2024