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 A242426 #10 Aug 07 2025 15:47:13 %S A242426 1,0,0,0,0,3,14,78,497,3628,29990,277200,2834328,31770514,387459072, %T A242426 5108103000,72397196844,1097800704000,17735107218083,304112751022080, %U A242426 5516784599040000,105559797875432727,2124765080865042873,44881973505008640000,992717442773183102976 %N A242426 a(n) = floor(n! / n^3). %F A242426 a(n) = floor(A000142(n-1) / A000290(n)). %o A242426 (Python) %o A242426 import math %o A242426 for i in range(1,32): print(math.factorial(i)//(i**3), end=', ') %Y A242426 Cf. A000142, A000290, A000578, A072230, A242427. %Y A242426 Cf. A226198 (floor(n!/n^2)). %K A242426 nonn %O A242426 1,6 %A A242426 _Alex Ratushnyak_, May 14 2014 %E A242426 Formula corrected by _David Radcliffe_, Aug 07 2025