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 A129790 #10 Sep 08 2022 08:45:30 %S A129790 6,18,72,324,1556,7776,39991,209952,1119744,6046618,32981551, %T A129790 181398528,1004668771,5597440293,31345665639,176319369216, %U A129790 995685849691,5642219814912,32071565263711,182807922003149,1044616697160851 %N A129790 a(n) = ceiling(6^n/n). %H A129790 Vincenzo Librandi, <a href="/A129790/b129790.txt">Table of n, a(n) for n = 1..1000</a> %o A129790 (Magma) [Ceiling(6^n/n):n in [1..30]]; // _Vincenzo Librandi_, Oct 03 2011 %Y A129790 Cf. A053638. %K A129790 nonn,easy %O A129790 1,1 %A A129790 _Mohammad K. Azarian_, May 18 2007