# A354418 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 30 5 5 6 35 7 70 8 770 9 10010 10 5005 11 15015 12 255255 13 4849845 14 1616615 15 3233230 16 74364290 17 37182145 18 1078282205 19 6469693230 20 200560490130 21 6077590610 22 3038795305 23 607759061 24 22487085257 25 44974170514 26 134922511542 27 5531822973222 28 921970495537 29 39644731308091