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A007986 as a simple table

n a(n)
1 2
2 12
3 242
4 2772
5 29282
6 320892
7 3543122
8 38987652
9 428717762
10 4715748972
11 51874849202
12 570624951732
13 6276856753442
14 69045406572252
15 759499667166482
16 8354496533703012
17 91899459727144322
18 1010894054854998732
19 11119834626984462962

[2,12,242,2772,29282,320892,3543122,38987652,
 428717762,4715748972,51874849202,570624951732,
 6276856753442,69045406572252,759499667166482,
 8354496533703012,91899459727144322,
 1010894054854998732,11119834626984462962]

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)