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A294495 as a simple table

na(n)
01
1-1
2-2
33
414
545
6-156
7-1225
8-3396
9-105
10226760
111175229
124084200
13-35683219
14-585896962
15-3512021955
16-14398868176
17198247498911
183131185307832
1929821940715413
20122481857683680
21-1187008881417051
22-31616420134183522
23-419944298964036771

[1,-1,-2,3,14,45,-156,-1225,-3396,-105,226760,
 1175229,4084200,-35683219,-585896962,-3512021955,
 -14398868176,198247498911,3131185307832,
 29821940715413,122481857683680,-1187008881417051,
 -31616420134183522,-419944298964036771]