63915domain: NAppears in sequencesa(n) = 76*n^2 - 1.at n=28A158765a(n) = (Sum_{k=0..n-1} (8*k^2+12*k+5)*A244973(k))/n^2.at n=8A245088Triangle 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=63A247493Number of (undirected) cycles in the n-Goldberg graph.at n=3A368192