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A134720 as a simple table

n a(n)
1 0
2 0
3 0
4 2
5 2
6 4
7 12
8 16
9 28
10 86
11 114
12 200
13 616
14 816
15 1432
16 4410
17 5842
18 10252
19 31572
20 41824
21 73396
22 226030
23 299426
24 525456
25 1618192
26 2143648
27 3761840
28 11584946
29 15346786
30 26931732
31 82938844
32 109870576
33 192809420
34 593775046
35 786584466
36 1380359512
37 4250949112

[0,0,0,2,2,4,12,16,28,86,114,200,616,816,1432,
 4410,5842,10252,31572,41824,73396,226030,299426,
 525456,1618192,2143648,3761840,11584946,15346786,
 26931732,82938844,109870576,192809420,593775046,
 786584466,1380359512,4250949112]

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)