# A000673 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 0
4 1
5 1
6 2
7 2
8 6
9 8
10 18
11 30
12 67
13 127
14 275
15 551
16 1192
17 2507
18 5475
19 11820
20 26007
21 57077
22 126686
23 281625
24 630660
25 1416116
26 3195784
27 7232624
28 16430563
29 37429146
30 85528079
31 195940960
32 450074270
33 1036226173
34 2391193488
35 5529420585