# A150147 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 73
5 286
6 1171
7 4930
8 21176
9 92591
10 411017
11 1846504
12 8372732
13 38262960
14 176083803
15 815325551
16 3795021644
17 17743531775
18 83289442421
19 392377483784
20 1854492950529
21 8790179694611
22 41772641587849
23 198979876476148
24 949875548782681
25 4543447373982078
26 21771657538903904
27 104501228825358146