# A019473 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 2
5 1
6 5
7 4
8 9
9 10
10 25
11 46
12 121
13 240
14 619
15 1353
16 3286
17 7773
18 19044
19 45759
20 112243
21 273188
22 672172
23 1646147
24 4051732
25 9971377
26 24619307
27 60823008
28 150613157
29 373188952
30 926068847
31 2299616637
32 5716948683
33 14223867298
34 35422864104