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A009987 as a simple table

n a(n)
0 1
1 43
2 1849
3 79507
4 3418801
5 147008443
6 6321363049
7 271818611107
8 11688200277601
9 502592611936843
10 21611482313284249
11 929293739471222707
12 39959630797262576401
13 1718264124282290785243
14 73885357344138503765449 

[1,43,1849,79507,3418801,147008443,6321363049,
 271818611107,11688200277601,502592611936843,
 21611482313284249,929293739471222707,
 39959630797262576401,1718264124282290785243,
 73885357344138503765449]

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Last modified June 5 11:59 EDT 2024. Contains 373105 sequences. (Running on oeis4.)