# A149433 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 13 4 46 5 160 6 590 7 2165 8 8150 9 30606 10 116538 11 443508 12 1702458 13 6538806 14 25255218 15 97606497 16 378655122 17 1470166114 18 5723589574 19 22300607746 20 87061280866 21 340147775826 22 1330975341918 23 5211699279580 24 20431613875778 25 80150459987066 26 314718467976066 27 1236491484795006 28 4861807577614986