# A148386 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 16 5 51 6 169 7 564 8 2046 9 7548 10 28355 11 106596 12 411047 13 1612830 14 6399150 15 25472182 16 102322757 17 415580010 18 1702115777 19 6999101160 20 28909694958 21 120178955216 22 502695571138 23 2110933288776 24 8891383171714 25 37597524503463 26 159682804500152 27 680544335825135 28 2907712571031676