# A149255 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 11
4 38
5 139
6 541
7 2123
8 8514
9 35349
10 148745
11 633783
12 2732576
13 11894507
14 52376280
15 232056273
16 1035710608
17 4649529099
18 20991138469
19 95287175913
20 434297949028
21 1987907866105
22 9132520363634
23 42103173513091
24 194746785684096
25 903283702220421
26 4201435577471729
27 19590692653947193