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A246494 as a simple table

n a(n)
1 2
2 4
3 13
4 47
5 107
6 643
7 1439
8 2879
9 34549
10 138197
11 858239
12 2029439
13 36449279

[2,4,13,47,107,643,1439,2879,34549,138197,858239,
 2029439,36449279]

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)