# A149188 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 10
4 37
5 126
6 470
7 1757
8 6821
9 26562
10 105818
11 423428
12 1716182
13 6992321
14 28716249
15 118480304
16 491549494
17 2047242541
18 8561397677
19 35918756167
20 151171279767
21 637943008302
22 2698970504329
23 11444255979602
24 48628209832546
25 207019652700133
26 882879856348389
27 3771329321179581