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A188458 as a simple table

na(n)
01
11
2-3
3-11
457
5361
6-2763
7-24611
8250737
92873041
10-36581523
11-512343611
127828053417
13129570724921
14-2309644635483
15-44110959165011
16898621108880097
1719450718635716001
18-445777636063460643
19-10784052561125704811
20274613643571568682777

[1,1,-3,-11,57,361,-2763,-24611,250737,2873041,
 -36581523,-512343611,7828053417,129570724921,
 -2309644635483,-44110959165011,898621108880097,
 19450718635716001,-445777636063460643,
 -10784052561125704811,274613643571568682777]