# A084083 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 9
4 19
5 44
6 96
7 227
8 507
9 1218
10 2768
11 6732
12 15504
13 38076
14 88616
15 219351
16 514855
17 1282710
18 3031860
19 7594665