# A036676 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 1 5 3 6 8 7 20 8 46 9 102 10 220 11 461 12 948 13 1921 14 3836 15 7574 16 14810 17 28705 18 55212 19 105485 20 200300 21 378262 22 710795 23 1329603 24 2476817 25 4596297 26 8499396 27 15665681 28 28786696 29 52747907 30 96398485 31 175735593 32 319623891 33 580054269