# A180438 (b-file synthesized from sequence entry)
0 0
1 0
2 6
3 18
4 36
5 78
6 150
7 306
8 420
9 792
10 1338
11 2082
12 3228
13 4830
14 7050
15 9954
16 13920
17 18738
18 24666
19 32610