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A075263 as a simple table

n a(n)
0 1
1 1
2 -1
3 2
4 -3
5 1
6 6
7 -12
8 7
9 -1
10 24
11 -60
12 50
13 -15
14 1
15 120
16 -360
17 390
18 -180
19 31
20 -1
21 720
22 -2520
23 3360
24 -2100
25 602
26 -63
27 1
28 5040
29 -20160
30 31920
31 -25200
32 10206
33 -1932
34 127
35 -1
36 40320
37 -181440
38 332640
39 -317520
40 166824
41 -46620
42 6050
43 -255
44 1
45 362880
46 -1814400
47 3780000
48 -4233600
49 2739240
50 -1020600
51 204630
52 -18660
53 511
54 -1

[1,1,-1,2,-3,1,6,-12,7,-1,24,-60,50,-15,1,120,
 -360,390,-180,31,-1,720,-2520,3360,-2100,602,-63,
 1,5040,-20160,31920,-25200,10206,-1932,127,-1,
 40320,-181440,332640,-317520,166824,-46620,6050,
 -255,1,362880,-1814400,3780000,-4233600,2739240,
 -1020600,204630,-18660,511,-1]

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Last modified April 24 19:36 EDT 2024. Contains 371962 sequences. (Running on oeis4.)