# A150158 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 74
5 295
6 1217
7 5190
8 22647
9 100615
10 453645
11 2068934
12 9529304
13 44244248
14 206843859
15 972671829
16 4597078503
17 21822430463
18 103989554045
19 497216087260
20 2384517334224
21 11466062259600
22 55266814345883
23 266960111496512
24 1292020237869313
25 6264036962958085
26 30418111852726110
27 147925273925223569