# A149830 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 10
4 28
5 85
6 282
7 961
8 3348
9 12090
10 44786
11 168404
12 643901
13 2505895
14 9858281
15 39170311
16 157508249
17 638763140
18 2608585552
19 10740130403
20 44524221312
21 185571516895
22 777920112939
23 3279160755069
24 13883250806461
25 59032846349700
26 252125642478286
27 1080805369925001
28 4648940165418700