# A026018 (b-file synthesized from sequence entry)
3 1
4 7
5 36
6 164
7 702
8 2898
9 11696
10 46512
11 183141
12 716243
13 2788060
14 10817820
15 41880930
16 161900910
17 625272480
18 2413491360
19 9313307370
20 35936613414
21 138680365704
22 535290282632
23 2066802226236
24 7983111461732
25 30848211650592