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A019200 as a simple table

n a(n)
3 0
4 4
5 0
6 2
7 0
8 12
9 8
10 124
11 124
12 568
13 938
14 2504
15 5920
16 15036
17 38622
18 94718
19 244900
20 618326
21 1536234
22 4099758
23 9977262
24 26982442
25 66352956
26 179514926
27 447677038
28 1206219808
29 3053871710
30 8159293202
31 20968150036
32 55708043068

[0,4,0,2,0,12,8,124,124,568,938,2504,5920,15036,
 38622,94718,244900,618326,1536234,4099758,9977262,
 26982442,66352956,179514926,447677038,1206219808,
 3053871710,8159293202,20968150036,55708043068]

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Last modified April 25 08:20 EDT 2024. Contains 371964 sequences. (Running on oeis4.)