# A056494 (b-file synthesized from sequence entry)
1 3
2 3
3 6
4 12
5 24
6 42
7 78
8 144
9 234
10 456
11 726
12 1392
13 2184
14 4290
15 6528
16 12960
17 19680
18 39078
19 59046
20 117600
21 177060
22 353562
23 531438
24 1061280
25 1594296
26 3186456
27 4782726
28 9561552
29 14348904
30 28690752
31 43046718