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A064330 as a simple table

na(n)
01
11
2-7
3113
4-2263
550721
6-1217703
730622929
8-796311415
921237226625
10-577699502407
1115966537989425
12-447086291268119
1312656524451911393
14-361628025405250023
1510415207118205622673
16-302049007052246016183

[1,1,-7,113,-2263,50721,-1217703,30622929,
 -796311415,21237226625,-577699502407,
 15966537989425,-447086291268119,12656524451911393,
 -361628025405250023,10415207118205622673,
 -302049007052246016183]