48655domain: NAppears in sequencesDiagonal in array of n-gonal numbers A081422.at n=36A08143575-gonal numbers: a(n) = n*(73*n-71)/2.at n=37A098230Triangle read by rows: T(n, k) = C(n, k)*C(2*k, k)/(k+1) - sum(j = 0..k, (-1)^j*(1-j)^n*C(k, j)/k!), 0<=k<=n.at n=64A247493A255443(2^n-1).at n=8A255444