# A012451 (b-file synthesized from sequence entry)
0 2
1 0
2 -80
3 -2688
4 18688
5 2928640
6 827766784
7 -52425949184
8 11263759220736
9 -6439993741672448
10 1974174235078164480
11 -952764420869394006016
12 577855093673994995367936
13 -371995357739088472730238976