# A015801 (b-file synthesized from sequence entry)
1 6
2 12
3 30
4 68
5 96
6 264
7 368
8 2064
9 4240
10 4636
11 6588
12 7276
13 10272
14 11800
15 36600
16 188544
17 251648
18 415000
19 1296640
20 3113472
21 50202624
22 201068544
23 16097947360
24 17177182208
25 25876667904
26 85895741440