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A105110 as a simple table

n a(n)
0 0
1 0
2 2
3 0
4 6
5 6
6 0
7 12
8 12
9 156
10 0
11 20
12 20
13 420
14 820
15 0
16 30
17 30
18 930
19 1830
20 29730
21 0
22 42
23 42
24 1806
25 3570
26 79422
27 229362
28 0
29 56
30 56
31 3192
32 6328
33 185080
34 539448
35 10903928
36 0
37 72
38 72
39 5256
40 10440
41 388872
42 1140552
43 29139336
44 111259080
45 0
46 90
47 90
48 8190
49 16290

[0,0,2,0,6,6,0,12,12,156,0,20,20,420,820,0,30,30,
 930,1830,29730,0,42,42,1806,3570,79422,229362,0,
 56,56,3192,6328,185080,539448,10903928,0,72,72,
 5256,10440,388872,1140552,29139336,111259080,0,90,
 90,8190,16290]

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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)