# A019210 (b-file synthesized from sequence entry)
3 0
4 0
5 3
6 6
7 7
8 28
9 49
10 100
11 247
12 692
13 1445
14 3457
15 9167
16 22971
17 56256
18 147690
19 383299
20 991560
21 2594234
22 6854341
23 18068210
24 47805058
25 127015595
26 338210910
27 901285787
28 2408577984
29 6449780524
30 17297087625
31 46467257473