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A291183 as a simple table

n a(n)
0 4
1 22
2 116
3 608
4 3180
5 16618
6 86812
7 453440
8 2368292
9 12369174
10 64601428
11 337397536
12 1762142540
13 9203221994
14 48066074172
15 251036784256
16 1311100720708
17 6847542588950
18 35762957380148
19 186780746599392
20 975507894703660
21 5094827328491242
22 26608975328086364

[4,22,116,608,3180,16618,86812,453440,2368292,
 12369174,64601428,337397536,1762142540,9203221994,
 48066074172,251036784256,1311100720708,
 6847542588950,35762957380148,186780746599392,
 975507894703660,5094827328491242,
 26608975328086364]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)