# A217525 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 2 6 4 7 6 8 15 9 31 10 67 11 155 12 343 13 787 14 1829 15 4233 16 9940 17 23454 18 55540 19 132390 20 316704 21 760462 22 1833050 23 4431552 24 10745282 25 26125316 26 63672044 27 155536070 28 380739734 29 933832952 30 2294581836 31 5647750518 32 13923153431 33 34375447863 34 84989987987 35 210407135915 36 521547749731 37 1294310608775 38 3215632551785 39 7997467696213 40 19910095233857