# A333732 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 4 4 6 5 8 6 18 7 40 8 230 9 4296 10 431206 11 162267272 12 201636689772 13 777816803942188 14 9865957936943931980 15 395886667549681689592056 16 53716176608076643470621240097 17 23524515269630339982914646822137232 18 35682168849414944013547274452501783251521