# A019155 (b-file synthesized from sequence entry)
3 0
4 0
5 4
6 2
7 0
8 28
9 44
10 44
11 296
12 732
13 1124
14 3644
15 10508
16 21864
17 58260
18 166444
19 403156
20 1030772
21 2823720
22 7302232
23 18938492
24 50966728
25 135299056
26 357236132
27 957898256
28 2568274480
29 6865057172
30 18460998564
31 49776287892