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A203004 as a simple table

n a(n)
1 1
2 -1
3 1
4 -18
5 1
6 1
7 -84
8 116
9 -1
10 1
11 -439
12 1221
13 -839
14 1
15 1
16 -2475
17 10435
18 -13855
19 5658
20 -1
21 1
22 -14312
23 81690
24 -165715
25 138669
26 -39038
27 1
28 1
29 -83270
30 601411
31 -1661956
32 2164099
33 -1292751
34 266899
35 -1
36 1
37 -485157

[1,-1,1,-18,1,1,-84,116,-1,1,-439,1221,-839,1,1,
 -2475,10435,-13855,5658,-1,1,-14312,81690,-165715,
 138669,-39038,1,1,-83270,601411,-1661956,2164099,
 -1292751,266899,-1,1,-485157]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)