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A159506 as a simple table

na(n)
01
124
2238
3-10512
4-493620
52365344
6890986056
716586747712
8-1709991063408
9-85890351335040
103140424382846176
11365679572700743424
12-2899788110604240192
13-1552791261528717092352
14-24525321318694178812800
156759200537905228989502464
16286564191995504982328955136

[1,24,238,-10512,-493620,2365344,890986056,
 16586747712,-1709991063408,-85890351335040,
 3140424382846176,365679572700743424,
 -2899788110604240192,-1552791261528717092352,
 -24525321318694178812800,
 6759200537905228989502464,
 286564191995504982328955136]