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A061848 as a simple table

n a(n)
3 0
4 2
5 0
6 0
7 12
8 38
9 0
10 0
11 1172
12 0
13 14572
14 52536
15 0
16 0
17 2581112
18 0
19 35791472
20 0
21 0
22 1908889156
23 0
24 0
25 399822600756
26 5864062716964
27 22517998136936
28 0
29 0
30 333599972407532
31 1286742760265468
32 0
33 0
34 4340410370789890656
35 0
36 255263053128088930472
37 0

[0,2,0,0,12,38,0,0,1172,0,14572,52536,0,0,2581112,
 0,35791472,0,0,1908889156,0,0,399822600756,
 5864062716964,22517998136936,0,0,333599972407532,
 1286742760265468,0,0,4340410370789890656,0,
 255263053128088930472,0]

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Last modified April 25 07:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)