# A281904 (b-file synthesized from sequence entry) 1 1 2 4 3 9 4 16 5 31 6 58 7 93 8 144 9 221 10 343 11 502 12 733 13 1048 14 1495 15 2089 16 2881 17 3947 18 5357 19 7205 20 9618 21 12758 22 16812 23 22001 24 28623 25 37037 26 47720 27 61121 28 77973 29 99029 30 125322 31 157874 32 198205 33 247954 34 309203 35 384260 36 476116 37 588149 38 724613 39 890175 40 1090781 41 1333193 42 1625702 43 1977505 44 2400221 45 2906800 46 3513121