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A002287 as a simple table

n a(n)
1 0
2 4
3 -48
4 224
5 -448
6 40
7 1408
8 -2240
9 1280
10 -924
11 -480
12 6944
13 -8704
14 5864
15 -14080
16 2240
17 33792
18 -19064
19 11088
20 -54432
21 -4480
22 38400
23 43648
24 75712
25 -124928
26 -62100
27 -70368
28 111552
29 87040
30 101992
31 14080
32 -302848
33 53248
34 -119040
35 228768
36 -22400

[0,4,-48,224,-448,40,1408,-2240,1280,-924,-480,
 6944,-8704,5864,-14080,2240,33792,-19064,11088,
 -54432,-4480,38400,43648,75712,-124928,-62100,
 -70368,111552,87040,101992,14080,-302848,53248,
 -119040,228768,-22400]

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)