cp's OEIS Frontend

A334174 Numbers that can be written as a product of two or more consecutive factorial numbers.

%I A334174 #11 Feb 16 2025 08:34:00
%S A334174 1,2,12,144,288,2880,17280,34560,86400,2073600,3628800,12441600,
%T A334174 24883200,203212800,435456000,10450944000,14631321600,62705664000,
%U A334174 125411328000,146313216000,1316818944000,17557585920000,73741860864000,144850083840000,421382062080000
%N A334174 Numbers that can be written as a product of two or more consecutive factorial numbers.
%H A334174 David A. Corneth, <a href="/A334174/b334174.txt">Table of n, a(n) for n = 1..1803</a> (terms < 10^1000)
%H A334174 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/FactorialProducts.html">Factorial Products</a>
%H A334174 <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>
%e A334174     1 = 0! * 1!;
%e A334174     2 = 1! * 2!;
%e A334174    12 = 2! * 3!;
%e A334174   144 = 3! * 4!;
%e A334174   288 = 2! * 3! * 4!.
%Y A334174 Cf. A000142, A000178, A001013, A010790, A034882, A045619, A058295, A334175.
%K A334174 nonn
%O A334174 1,2
%A A334174 _Ilya Gutkovskiy_, Apr 17 2020