78464

Appears in sequences

• Number of columns in the character table of the symmetric group S_n that have zero sum.at n=44A085642
• A(x) satisfies A005408(x) = A(x)/A(x^2), A005408 = odd numbers.at n=29A173283
• a(1) = 1; a(2) = 2; thereafter a(n) is the smallest number > a(n-1) which is neither of the form 2*a(i) nor Sum_{j=1..n-1} ( b_j*a(j) ) where 0 < i < n, b_j = 1 or 0.at n=19A331809
• Number of integer compositions of n with integer geometric mean.at n=28A357710