# A150026 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 19
4 74
5 272
6 1128
7 4785
8 19680
9 85534
10 375994
11 1621412
12 7228110
13 32438712
14 143597689
15 649971056
16 2955472000
17 13301538596
18 60825607272
19 279067019064
20 1270235883915
21 5851260862078
22 27020828578132
23 123996284280459
24 574325273769182
25 2665349207045963
26 12306252890649850
27 57243664510934520