# A149921 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 47
5 158
6 546
7 1959
8 7186
9 26752
10 101598
11 390218
12 1515442
13 5942431
14 23505016
15 93645233
16 375351768
17 1514057193
18 6138079032
19 24996491647
20 102243003319
21 419849010522
22 1730025591625
23 7151698005385
24 29656218739201
25 123313206841880
26 514038736373565
27 2148049283949433
28 8996338290624829