73530

Appears in sequences

• McKay-Thompson series of class 31A for Monster.at n=47A058628
• a(n) = binomial(n,4) - binomial(floor(n/2),4) - binomial(ceiling(n/2),4).at n=39A111385
• Define an array by d(m, 0) = 1, d(m, 1) = m; d(m, k) = (m - k + 1) d(m+1, k-1) - (k-1) (m+1) d(m+2, k-2). Sequence gives d(n,3).at n=43A126935
• G.f. of the z^2 coefficients of the FP1 in the third column of the A156921 matrix.at n=7A156929
• Those primitive elements of A337386 that have exactly one primitive nondeficient divisor (A006039).at n=29A341604