# A098878 (b-file synthesized from sequence entry)
0 -2
1 -1
2 25
3 341
4 3373
5 29789
6 250045
7 2048381
8 16581373
9 133432829
10 1070599165
11 8577357821
12 68669157373
13 549554511869
14 4397241253885
15 35181150961661
16 281462092005373
17 2251748274470909
18 18014192351838205