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A246805 as a simple table

n a(n)
1 1
2 3
3 4
4 7
5 19
6 31
7 67
8 391
9 583
10 4549
11 917467
12 6777061
13 86794921
14 1421517037
15 171234891469 

[1,3,4,7,19,31,67,391,583,4549,917467,6777061,
 86794921,1421517037,171234891469]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)