# A149617 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 15
4 65
5 231
6 1049
7 4011
8 18485
9 74073
10 344159
11 1420619
12 6640395
13 27983731
14 131369483
15 562216845
16 2647935169
17 11468400275
18 54152874967
19 236788885161
20 1120433948881
21 4937654152517
22 23404568421231
23 103817747202309
24 492825352426061
25 2198232231222405
26 10448373626637379
27 46827872771777471