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A072415 as a simple table

n a(n)
1 2
2 26
3 182
4 878
5 3626
6 13508
7 46922
8 155156
9 494468
10 1529590
11 4615074
12 13633310
13 39548078
14 112918434
15 317920082
16 883996002

[2,26,182,878,3626,13508,46922,155156,494468,
 1529590,4615074,13633310,39548078,112918434,
 317920082,883996002]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)