# A026983 (b-file synthesized from sequence entry)
2 1
3 8
4 47
5 224
6 1130
7 4868
8 23404
9 97230
10 457264
11 1868456
12 8679894
13 35162196
14 162087345
15 653396608
16 2996092939
17 12041970574
18 55006554003
19 220673343660
20 1005105011265
21 4027407386110
22 18302390130349
23 73278803406040
24 332412585527847
25 1330205838019114
26 6025308727310905