# A077831 (b-file synthesized from sequence entry) 0 1 1 3 2 11 3 41 4 151 5 557 6 2055 7 7581 8 27967 9 103173 10 380615 11 1404125 12 5179951 13 19109333 14 70496151 15 260067021 16 959412031 17 3539362437 18 13057045415 19 48168685181 20 177698871247 21 655548074933 22 2418379337655 23 8921631905325 24 32912750541151 25 121418274109413