# A143598 (b-file synthesized from sequence entry) 0 1 1 2 2 28 3 1176 4 103440 5 15726880 6 3684098496 7 1232799974784 8 558670427013376 9 329559835063067136 10 245462725323910487040 11 225319148634038399801344 12 249936012383478860884217856 13 329609037187846742271984869376