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A273506 as a simple table

n a(n)
1 1
2 -1
3 7
4 1
5 -1
6 11
7 -1
8 319
9 -143
10 715
11 1
12 -26
13 559
14 -221
15 4199
16 -2
17 139
18 -323
19 6137
20 -2261
21 52003
22 1
23 -10897
24 135983
25 -4199
26 527459
27 -52003
28 37145
29 -1
30 15409
31 -317281
32 21586489
33 -52877
34 7429
35 -88711
36 1964315
37 1
38 -76
39 269123
40 -100901
41 274873
42 -8671
43 227447
44 -227447
45 39803225
46 -2
47 466003
48 -213739
49 522629
50 -59074189
51 226061641
52 -10690009
53 25701511
54 -42077695
55 547010035

[1,-1,7,1,-1,11,-1,319,-143,715,1,-26,559,-221,
 4199,-2,139,-323,6137,-2261,52003,1,-10897,135983,
 -4199,527459,-52003,37145,-1,15409,-317281,
 21586489,-52877,7429,-88711,1964315,1,-76,269123,
 -100901,274873,-8671,227447,-227447,39803225,-2,
 466003,-213739,522629,-59074189,226061641,
 -10690009,25701511,-42077695,547010035]

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Last modified February 18 03:33 EST 2020. Contains 332006 sequences. (Running on oeis4.)