# A148916 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 8
4 33
5 116
6 516
7 2063
8 9554
9 40942
10 194045
11 867281
12 4170657
13 19162172
14 93044027
15 435704224
16 2129890888
17 10110771458
18 49665401778
19 238154054194
20 1174043836070
21 5672872958902
22 28041860704509
23 136297267469379
24 675146477214983
25 3296794913796290
26 16357334853181910
27 80170121258985704