# A049925 (b-file synthesized from sequence entry) 1 1 2 3 3 3 4 4 5 10 6 17 7 35 8 70 9 142 10 215 11 465 12 948 13 1903 14 3812 15 7625 16 15250 17 30502 18 45755 19 99135 20 202083 21 406075 22 813105 23 1626693 24 3253636 25 6507345 26 13014762 27 26029559 28 52059136 29 104118279 30 208236564 31 416473129 32 832946258 33 1665892518