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A121801 as a simple table

n a(n)
1 0
2 6
3 10
4 32
5 78
6 210
7 544
8 1430
9 3738
10 9792
11 25630
12 67106
13 175680
14 459942
15 1204138
16 3152480
17 8253294
18 21607410
19 56568928
20 148099382
21 387729210
22 1015088256
23 2657535550
24 6957518402
25 18215019648
26 47687540550
27 124847601994

[0,6,10,32,78,210,544,1430,3738,9792,25630,67106,
 175680,459942,1204138,3152480,8253294,21607410,
 56568928,148099382,387729210,1015088256,
 2657535550,6957518402,18215019648,47687540550,
 124847601994]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)