# A148404 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 17 5 50 6 183 7 612 8 2427 9 8825 10 36059 11 138389 12 581717 13 2316687 14 9922307 15 40628935 16 176649853 17 738938555 18 3250269764 19 13829300753 20 61402897922 21 264875758505 22 1185178057988 23 5170848320772 24 23286936959696 25 102567165143373 26 464457815281869 27 2062198363246999 28 9382546018637717