# A149452 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 13
4 49
5 190
6 797
7 3360
8 14534
9 63886
10 284896
11 1282848
12 5829638
13 26690801
14 122989106
15 569876645
16 2653240162
17 12405690763
18 58222972007
19 274173721826
20 1294976257690
21 6133081638010
22 29118225874467
23 138556467358426
24 660664529658206
25 3156133476745489
26 15103784291215723
27 72396182383167108