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 A030880 #10 Sep 08 2022 08:44:50 %S A030880 1,3,11,44,221,1326,9286,74288,668598,6685982,73545804,882549650, %T A030880 11473145461,160624036454,2409360546814,38549768749031, %U A030880 655346068733532,11796229237203591,224128355506868246,4482567110137364921,94133909312884663355,2070946004883462593813 %N A030880 a(n) = floor( exp(11/18)*n! ). %o A030880 (Magma) [Floor(Exp(11/18)*Factorial(n)): n in [1..20]]; // _Bruno Berselli_, May 13 2015 %K A030880 nonn %O A030880 1,2 %A A030880 _Simon Plouffe_ %E A030880 More terms from _Bruno Berselli_, May 13 2015