# A113753 (b-file synthesized from sequence entry) 1 2 2 4 3 6 4 9 5 14 6 18 7 25 8 32 9 44 10 63 11 86 12 126 13 185 14 276 15 424 16 663 17 1046 18 1658 19 2651 20 4252 21 6838 22 11025 23 17794 24 28746 25 46465 26 75126 27 121496 28 196525 29 317920 30 514342 31 832167 32 1346400 33 2178446 34 3524717 35 5703036 36 9227616 37 14930509 38 24157980 39 39088336