# A024523 (b-file synthesized from sequence entry) 3 6 4 61 5 348 6 1646 7 5754 8 17535 9 44268 10 102412 11 227750 12 452531 13 869928 14 1576686 15 2666994 16 4341745 17 6932756 18 10845872 19 16266454 20 24022575 21 34629762 22 48484870 23 67169634 24 91475603 25 123389134 26 165725172 27 219251334 28 284875003 29 365853566