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A291024 as a simple table

n a(n)
0 0
1 4
2 8
3 24
4 64
5 172
6 456
7 1200
8 3136
9 8148
10 21064
11 54216
12 139008
13 355196
14 904840
15 2298720
16 5825408
17 14729636
18 37168008
19 93612408
20 235369664
21 590852172
22 1481051720
23 3707411472
24 9268764096
25 23145174388
26 57732471752
27 143857070376
28 358113876352
29 890666303260

[0,4,8,24,64,172,456,1200,3136,8148,21064,54216,
 139008,355196,904840,2298720,5825408,14729636,
 37168008,93612408,235369664,590852172,1481051720,
 3707411472,9268764096,23145174388,57732471752,
 143857070376,358113876352,890666303260]

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Last modified May 14 21:33 EDT 2024. Contains 372533 sequences. (Running on oeis4.)