# A151398 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 11
5 26
6 84
7 220
8 742
9 2070
10 7197
11 20922
12 74432
13 223010
14 805708
15 2470392
16 9027576
17 28187178
18 103920850
19 329292906
20 1222553336
21 3921481206
22 14641490905
23 47450199350
24 177987479208
25 581924348298
26 2191300828800
27 7219235616842
28 27274167110054
29 90456438360198
30 342703672881624
31 1143317551856284