# A150556 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 26
4 105
5 444
6 1947
7 8711
8 39591
9 182324
10 848227
11 3976086
12 18761532
13 89032134
14 424423410
15 2031081206
16 9753336307
17 46975045125
18 226821209031
19 1097703227863
20 5323162897579
21 25860225840988
22 125831368964770
23 613165370055901
24 2991836251485650
25 14615473211851948
26 71475761295702573