# A174319 (b-file synthesized from sequence entry)
0 1
1 6
2 30
3 126
4 534
5 2214
6 9246
7 38142
8 157974
9 649086
10 2675022
11 10966470
12 45054630
13 184400910
14 755930958
15 3089851782
16 12645783414
17 51635728518
18 211059485310
19 861083848998
20 3516072837894
21 14334995983614
22 58485689950254