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A136509 as a simple table

n a(n)
0 1
1 2
2 6
3 16
4 50
5 171
6 697
7 3416
8 21126
9 169105
10 1794683
11 25891713
12 507686588
13 13878639286
14 518836271475
15 27356839451662
16 1968958300103603
17 200935638262212462
18 27892630019328034846
19 5502857784211927305980

[1,2,6,16,50,171,697,3416,21126,169105,1794683,
 25891713,507686588,13878639286,518836271475,
 27356839451662,1968958300103603,
 200935638262212462,27892630019328034846,
 5502857784211927305980]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)