# A151049 (b-file synthesized from sequence entry) 0 1 1 3 2 10 3 37 4 140 5 565 6 2363 7 10081 8 43804 9 192299 10 856225 11 3855615 12 17502538 13 79999409 14 367600610 15 1698965765 16 7893277598 17 36827039911 18 172440669409 19 809974811669 20 3816568822752 21 18036668133967 22 85457537179048 23 405802189502785 24 1930903706094502 25 9206002025583689 26 43974563890763465