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A347898 as a simple table

na(n)
01
10
22
30
424
5-30
6694
7-1050
837832
9-167076
103840946
11-16352820
12484077316
13-3571377810
1492305923462
15-735565382370
1624089429290352
17-260389373957160
187612771211634930
19-88060997260644552
202819270530524656316
21-42624237378570669990
221487399781900667121150

[1,0,2,0,24,-30,694,-1050,37832,-167076,3840946,
 -16352820,484077316,-3571377810,92305923462,
 -735565382370,24089429290352,-260389373957160,
 7612771211634930,-88060997260644552,
 2819270530524656316,-42624237378570669990,
 1487399781900667121150]