# A048019 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 0
5 4
6 10
7 20
8 41
9 77
10 140
11 252
12 505
13 1000
14 1780
15 3652
16 7305
17 12545
18 25805
19 52325
20 88634
21 184736
22 379676
23 636524
24 1334942
25 2764139
26 4594244
27 9685364
28 20191604
29 33355944
30 70639794
31 148064400
32 243374923
33 517215283