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A002003 as a simple table

n a(n)
0 0
1 2
2 8
3 38
4 192
5 1002
6 5336
7 28814
8 157184
9 864146
10 4780008
11 26572086
12 148321344
13 830764794
14 4666890936
15 26283115038
16 148348809216
17 838944980514
18 4752575891144
19 26964373486406
20 153196621856192
21 871460014012682
22 4962895187697048
23 28292329581548718

[0,2,8,38,192,1002,5336,28814,157184,864146,
 4780008,26572086,148321344,830764794,4666890936,
 26283115038,148348809216,838944980514,
 4752575891144,26964373486406,153196621856192,
 871460014012682,4962895187697048,
 28292329581548718]

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Last modified August 9 13:53 EDT 2024. Contains 375042 sequences. (Running on oeis4.)