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A143696 as a simple table

n a(n)
1 4
2 10
3 24
4 46
5 72
6 260
7 400
8 766
9 1584
10 2900
11 4104
12 19596
13 16392
14 67240
15 139968
16 196606
17 266256
18 1098760
19 1048584
20 3416604
21 10454400
22 10506260
23 16810000
24 83667116
25 75497616
26 167854100
27 415239264
28 1275614776
29 1073741832
30 6341140000
31 6179217664
32 12884901886

[4,10,24,46,72,260,400,766,1584,2900,4104,19596,
 16392,67240,139968,196606,266256,1098760,1048584,
 3416604,10454400,10506260,16810000,83667116,
 75497616,167854100,415239264,1275614776,
 1073741832,6341140000,6179217664,12884901886]

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Last modified May 2 10:17 EDT 2024. Contains 372196 sequences. (Running on oeis4.)