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A090305 as a simple table

n a(n)
0 2
1 16
2 258
3 4144
4 66562
5 1069136
6 17172738
7 275832944
8 4430499842
9 71163830416
10 1143051786498
11 18359992414384
12 294902930416642
13 4736806879080656
14 76083812995707138
15 1222077814810394864
16 19629328849962024962

[2,16,258,4144,66562,1069136,17172738,275832944,
 4430499842,71163830416,1143051786498,
 18359992414384,294902930416642,4736806879080656,
 76083812995707138,1222077814810394864,
 19629328849962024962]

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Last modified March 28 15:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)