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A018942 as a simple table

n a(n)
2 3
3 7
4 40
5 182
6 743
7 4352
8 30332
9 201543
10 1325921
11 8713574
12 57424581
13 382475483
14 2579060723
15 17576553677
16 120836055479 

[3,7,40,182,743,4352,30332,201543,1325921,8713574,
 57424581,382475483,2579060723,17576553677,
 120836055479]

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Last modified September 3 22:09 EDT 2024. Contains 375675 sequences. (Running on oeis4.)