# A073472 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 7 4 11 5 17 6 25 7 36 8 50 9 68 10 92 11 121 12 159 13 205 14 262 15 332 16 417 17 520 18 645 19 793 20 971 21 1180 22 1430 23 1722 24 2065 25 2467 26 2934 27 3478 28 4109 29 4835 30 5676 31 6638 32 7747 33 9013 34 10459 35 12108 36 13980 37 16110 38 18522 39 21247 40 24333 41 27800 42 31715 43 36106 44 41039 45 46567