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 A065412 #13 Sep 02 2023 16:59:47 %S A065412 0,0,0,0,1,20,480,10560,272640,8709120,280627200,10644480000, %T A065412 439404134400,18781972070400,873535419187200,45751167221760000, %U A065412 2665172872986624000,160281737951182848000,10593163661832880128000 %N A065412 a(n) = (A005867(n+1) - A000165(n))/96. %C A065412 A005867 can be generated recursively using A006093 and A000165 can be generated recursively using the even numbers. Since all primes after 2 are odd, (A005867 - A000165)/96 is an integer. %e A065412 A005867(n+1) begins 1, 2, 8, 48, 480, 5760, 92160, ... %e A065412 A000165(n) begins 1, 2, 8, 48, 384, 3840, 46080, ... %e A065412 difference begins 0, 0, 0, 0, 96, 1920, 46080, ... . %Y A065412 Cf. A000165, A005867, A006093. %K A065412 easy,nonn %O A065412 0,6 %A A065412 _Alford Arnold_, Nov 23 2001 %E A065412 More terms from _Jason Earls_, Apr 23 2002