# A161476 (b-file synthesized from sequence entry) 0 1 1 15 2 119 3 664 4 2924 5 10813 6 34900 7 100913 8 266338 9 650658 10 1487262 11 3208036 12 6574987 13 12876702 14 24210652 15 43874857 16 76893687 17 130701986 18 216008661 19 347854815 20 546871981 21 840732790 22 1265769513 23 1868715733 24 2708503701