# A003799 (b-file synthesized from sequence entry) 0 1 1 360 2 42456960 3 50759843097600 4 78660280796419613491200 5 1234219157861100568481165377536000 6 6274437692242927471137606015213542491815936000 7 161481381212849029341257163594808056515516032931132866560000