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A019189 as a simple table

n a(n)
3 0
4 0
5 4
6 6
7 4
8 14
9 58
10 92
11 210
12 634
13 1508
14 3396
15 9146
16 23122
17 57426
18 148059
19 387186
20 999616
21 2610208
22 6896852
23 18208962
24 48186835
25 128268784
26 342178817
27 913913320
28 2447445969
29 6567765526
30 17648723962
31 47503178926

[0,0,4,6,4,14,58,92,210,634,1508,3396,9146,23122,
 57426,148059,387186,999616,2610208,6896852,
 18208962,48186835,128268784,342178817,913913320,
 2447445969,6567765526,17648723962,47503178926]

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Last modified April 23 13:41 EDT 2024. Contains 371914 sequences. (Running on oeis4.)