1264264
domain: N
Appears in sequences
- Number of degree-n even permutations of order dividing 2.at n=14A000704
- Sum of degrees of irreducible representations of alternating group A_n.at n=13A007002
- E.g.f. cosh(x+x^2/2).at n=14A085386
- Number of nX3 binary arrays with each sum of a(1..i,1..j) no greater than i*j/2 and rows and columns in nondecreasing order.at n=25A183410