# A027120 (b-file synthesized from sequence entry)
2 2
3 7
4 20
5 56
6 155
7 429
8 1188
9 3298
10 9181
11 25634
12 71781
13 201569
14 567538
15 1601971
16 4532460
17 12851882
18 36516613
19 103955432
20 296471643
21 846932919
22 2423256440
23 6943726380
24 19924638557
25 57247669927
26 164688166948
27 474323305547