# A124682 (b-file synthesized from sequence entry) 1 2 2 3 3 6 4 13 5 29 6 71 7 173 8 444 9 1148 10 3030 11 8059 12 21715 13 58836 14 160687 15 441083 16 1217134 17 3372386 18 9380948 19 26180962 20 73292358 21 205731862 22 578922864 23 1632707684 24 4614098810 25 13064064882 26 37052720050 27 105257568244 28 299452309023 29 853094139960 30 2433439189419