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A368266 as a simple table

na(n)
01
1-1
24
31
460
5393
64498
754689
8773384
912268369
10216328614
114195769433
1288776964444
132034936319817
1450232646818890
151328570248040497
1637481046375146640
171123486426007081505
1835657224567565828302
191194561018775753556777
2042125545306641497600036

[1,-1,4,1,60,393,4498,54689,773384,12268369,
 216328614,4195769433,88776964444,2034936319817,
 50232646818890,1328570248040497,37481046375146640,
 1123486426007081505,35657224567565828302,
 1194561018775753556777,42125545306641497600036]