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A377268 as a simple table

na(n)
01
1-3
20
39
427
50
6-324
7-1215
80
918711
1075816
110
12-1301265
13-5484996
140
15100048689
16431943435
170
18-8192222064
19-35942240565
200
21700434986472
223108770417700
230
24-61805774132388
25-276711654879477
260
275586291123504300
2825180760594032407
290
30-514555201693265040

[1,-3,0,9,27,0,-324,-1215,0,18711,75816,0,
 -1301265,-5484996,0,100048689,431943435,0,
 -8192222064,-35942240565,0,700434986472,
 3108770417700,0,-61805774132388,-276711654879477,
 0,5586291123504300,25180760594032407,0,
 -514555201693265040]