# A002044 (b-file synthesized from sequence entry)
3 6
4 0
5 0
6 21
7 60
8 90
9 182
10 378
11 861
12 1737
13 3458
14 6717
15 13377
16 25877
17 49949
18 95085
19 180254
20 338003
21 631124
22 1168226
23 2151409
24 3934674
25 7159108
26 12948649
27 23307439