# A153949 (b-file synthesized from sequence entry)
0 1
1 2
2 2
3 4
4 5
5 11
6 19
7 64
8 124
9 431
10 1327
11 5041
12 16256
13 101123
14 343523
15 2315198
16 12588566
17 91251647
18 541807894
19 6226655381
20 40196314396
21 497995326239
22 5136985473929
23 68806411497081
24 764460274355923
25 16405775345542751