72320domain: NAppears in sequencesPowers of fifth root of 19 rounded down.at n=19A018168Square root of A003462, rounded up.at n=20A160393Triangle read by rows, 4^k*s_4(n, k) where s_m(n, k) are the Stirling-Frobenius cycle numbers of order m; n >= 0, k >= 0.at n=18A225478