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A199917 as a simple table

n a(n)
0 0
1 1
2 0
3 -1
4 0
5 -7
6 0
7 -23
8 0
9 -5947
10 0
11 -140759
12 0
13 -8265391
14 0
15 133286519
16 0
17 1088222737541
18 0
19 4970981405216383
20 0
21 7294918534710727
22 0
23 -32299178524632916333
24 0
25 -944164720798082858723567
26 0
27 2252653730296347607326319
28 0
29 1968938229271096381309083587

[0,1,0,-1,0,-7,0,-23,0,-5947,0,-140759,0,-8265391,
 0,133286519,0,1088222737541,0,4970981405216383,0,
 7294918534710727,0,-32299178524632916333,0,
 -944164720798082858723567,0,
 2252653730296347607326319,0,
 1968938229271096381309083587]

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Last modified March 1 12:27 EST 2024. Contains 370433 sequences. (Running on oeis4.)