# A150135 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 72
5 277
6 1109
7 4578
8 19276
9 82614
10 359661
11 1586055
12 7067002
13 31747505
14 143674019
15 654614385
16 3000538614
17 13824229597
18 63972253270
19 297222305536
20 1386101998356
21 6486263136848
22 30444998558904
23 143290472592821
24 676097366037068
25 3197627671498764
26 15156589256904697
27 71985821847295508