# A079996 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 11 5 33 6 82 7 198 8 516 9 1389 10 3690 11 9642 12 25143 13 65867 14 173092 15 454578 16 1192227 17 3125940 18 8198836 19 21509532 20 56429115 21 148023671 22 388279519 23 1018515853 24 2671777153 25 7008626377 26 18384947908 27 48227023198 28 126508325008