# A012556 (b-file synthesized from sequence entry)
0 2
1 -4
2 230
3 -7880
4 922378
5 -104579660
6 22872643950
7 -5494080273552
8 1980593407445778
9 -817099673512164244
10 445251089168585478902
11 -279905701143388803184984
12 216483300093818109473976346