# A037496 (b-file synthesized from sequence entry) 1 1 2 3 3 11 4 34 5 102 6 308 7 925 8 2775 9 8327 10 24982 11 74946 12 224840 13 674521 14 2023563 15 6070691 16 18212074 17 54636222 18 163908668 19 491726005 20 1475178015 21 4425534047 22 13276602142 23 39829806426 24 119489419280 25 358468257841 26 1075404773523