# A112499 (b-file synthesized from sequence entry)
4 6
5 111
6 1100
7 8030
8 48950
9 265625
10 1331540
11 6310976
12 28719094
13 126814819
14 547457452
15 2323131730
16 9729382150
17 40335953245
18 165915269268
19 678306115284
20 2759909133030
21 11187839886855
22 45220188014220
23 182359367356230