# A115780 (b-file synthesized from sequence entry)
0 2
1 0
2 4
3 8
4 14
5 32
6 60
7 140
8 212
9 750
10 1322
11 2540
12 6862
13 13040
14 27174
15 57052
16 117164
17 248360
18 555254