113832domain: NAppears in sequencesPrimitive elements of A096490.at n=35A118671Numbers n such that sigma(n) = 10*phi(n) (where sigma=A000203, phi=A000010).at n=15A171256Triangle read by rows: T(n,k) is the sum of the k X k minors in the n X n Pascal matrix (0<=k<=n; the empty 0 X 0 minor is defined to be 1).at n=40A184173