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 A072529 #7 Apr 16 2025 05:28:10 %S A072529 1,24,3240,1290240,1126125000,1822853652480,4914543582748800, %T A072529 20469829379869900800,124583146969045247683200, %U A072529 1061374990515840000000000000,12232437772393129356474535526400 %N A072529 Product of the next n multiples of n. %F A072529 a(n) = n^n * (n*(n+1)/2)! / (n*(n-1)/2)!. - _Lior Manor_, Aug 19 2002 %e A072529 a(4) = 10*4 * 9*4 * 8*4 * 7*4 = 1290240. %o A072529 (PARI) a(n) = n^n * (n*(n+1)/2)! / (n*(n-1)/2)!; \\ _Michel Marcus_, Apr 16 2025 %Y A072529 a(n) = A057003(n) * n^n. %K A072529 nonn %O A072529 1,2 %A A072529 _Amarnath Murthy_, Aug 01 2002 %E A072529 More terms from _Lior Manor_ Aug 19 2002