# A291518 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 6
5 12
6 30
7 78
8 186
9 414
10 912
11 2064
12 4338
13 9798
14 20106
15 40974
16 80196
17 158322
18 309414
19 615558
20 1212402
21 2417136
22 4776654
23 9497508
24 18726708
25 37056150
26 72946116
27 144230640
28 284660874
29 564451830
30 1118803818
31 2224792026
32 4420041210
33 8791590168