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A019117 as a simple table

n a(n)
3 0
4 0
5 5
6 4
7 4
8 24
9 44
10 86
11 230
12 499
13 1216
14 3329
15 8059
16 20320
17 54177
18 138028
19 352138
20 917367
21 2382713
22 6193160
23 16203044
24 42592581
25 112203219
26 296304327
27 785315392
28 2085553429
29 5547221211
30 14791385421

[0,0,5,4,4,24,44,86,230,499,1216,3329,8059,20320,
 54177,138028,352138,917367,2382713,6193160,
 16203044,42592581,112203219,296304327,785315392,
 2085553429,5547221211,14791385421]

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Last modified October 15 07:42 EDT 2019. Contains 328026 sequences. (Running on oeis4.)