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A123935 as a simple table

n a(n)
1 0
2 0
3 16
4 0
5 164
6 1488
7 12756
8 62176
9 379376
10 2426224
11 13367704
12 72972656
13 402564940
14 2167170608
15 11412234916
16 59638462576
17 308861005448
18 1581575598752
19 8029891390392
20 40482609620976
21 202672272980456
22 1008192626002544
23 4987067296004984
24 24540946112970792

[0,0,16,0,164,1488,12756,62176,379376,2426224,
 13367704,72972656,402564940,2167170608,
 11412234916,59638462576,308861005448,
 1581575598752,8029891390392,40482609620976,
 202672272980456,1008192626002544,4987067296004984,
 24540946112970792]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)