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 A066583 #11 Apr 16 2025 05:25:56 %S A066583 1,36,12,360,1728,2,864,64800,62208,40960,57153600,8128512,31104, %T A066583 10497600,184320,31352832,414720,17418240,1360488960,54177693696, %U A066583 9631589990400,156764160000,79009136640000,1161434308608000,880969431121920,97497558401679360,82944 %N A066583 Product of nonzero digits of A066551(n). %e A066583 The third term of A066551 is 162 hence a(3) = 12. %Y A066583 Cf. A066551. %K A066583 easy,nonn,base %O A066583 1,2 %A A066583 _Amarnath Murthy_, Dec 21 2001 %E A066583 Corrected and extended by _Lior Manor_, Feb 13 2002 %E A066583 a(21) onward corrected by _Sean A. Irvine_, Oct 29 2023