# A148791 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 25
5 77
6 257
7 865
8 3021
9 10549
10 37753
11 135438
12 494280
13 1806200
14 6678951
15 24716159
16 92336889
17 345207465
18 1299979995
19 4897841100
20 18561069686
21 70366144206
22 268059657293
23 1021470014124
24 3908025765480
25 14955232173032
26 57425244146832
27 220542549019640
28 849474612586124
29 3272448053938140