# A092685 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 11 4 25 5 55 6 120 7 258 8 551 9 1169 10 2469 11 5193 12 10885 13 22746 14 47404 15 98553 16 204443 17 423259 18 874680 19 1804556 20 3717348 21 7647075 22 15711194 23 32242013 24 66096274 25 135366764 26 276988466 27 566312984 28 1156974619 29 2362043602