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A068551 as a simple table

n a(n)
0 0
1 2
2 10
3 44
4 186
5 772
6 3172
7 12952
8 52666
9 213524
10 863820
11 3488872
12 14073060
13 56708264
14 228318856
15 918624304
16 3693886906
17 14846262964
18 59644341436
19 239532643144
20 961665098956
21 3859788636664
22 15488087080696
23 62135313450064

[0,2,10,44,186,772,3172,12952,52666,213524,863820,
 3488872,14073060,56708264,228318856,918624304,
 3693886906,14846262964,59644341436,239532643144,
 961665098956,3859788636664,15488087080696,
 62135313450064]

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)