# A150388 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 23
4 102
5 375
6 1745
7 6878
8 32644
9 133432
10 640941
11 2686025
12 13008572
13 55465855
14 270114683
15 1167116596
16 5706990946
17 24912842259
18 122187282951
19 537859897295
20 2644295665648
21 11719823403199
22 57728318531618
23 257340579052914
24 1269573706580594
25 5687351829395149
26 28094740408209420
27 126394025609794392