# A124466 (b-file synthesized from sequence entry)
0 1
1 7
2 34
3 159
4 788
5 4117
6 22143
7 121079
8 670811
9 3764758
10 21408813
11 123367344
12 720303998
13 4260491461
14 25523584313
15 154835572102
16 950950450917
17 5911757419002
18 37193168793829
19 236764641742504
20 1524754216743136