# A168940 (b-file synthesized from sequence entry) 0 1 1 23 2 506 3 11132 4 244904 5 5387888 6 118533536 7 2607737792 8 57370231424 9 1262145091328 10 27767192009216 11 610878224202752 12 13439320932460544 13 295665060514131968 14 6504631331310903296 15 143101889288839872512