# A148675 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 21
5 65
6 205
7 713
8 2399
9 8807
10 31423
11 118403
12 442903
13 1696475
14 6569623
15 25553523
16 101307245
17 400537565
18 1612283869
19 6479393097
20 26354237909
21 107481783441
22 440881860189
23 1819850183485
24 7525644193561
25 31351482619465
26 130708930200313
27 548353337148221
28 2304188571803413