838252800
domain: N
Appears in sequences
- E.g.f. x^2*(1-x)/(1-x-x^2).at n=11A052602
- Number of descents beginning with an even number and ending with an odd number in all permutations of {1,2,...,n}.at n=11A152887
- a(n) = (2*n+1)*(n+1)!.at n=10A175925
- a(n) = Product_{2 <= i < j <= n+1} (i + j).at n=4A203470
- The smallest number beginning with n that can be decomposed into divisors consisting exclusively of the first n semiprimes.at n=7A226296
- Number of minimum dominating sets in the n-triangular honeycomb bishop graph.at n=20A381559