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A028984 as a simple table

n a(n)
1 2
2 4
3 8
4 9
5 121
6 242
7 484
8 676
9 10201
10 12321
11 14641
12 20402
13 24642
14 40804
15 44944
16 69696
17 94249
18 698896
19 1002001
20 1234321
21 2004002
22 2138312
23 2468642
24 4008004
25 5221225
26 6948496
27 85099058
28 100020001
29 102030201
30 104060401
31 121242121

[2,4,8,9,121,242,484,676,10201,12321,14641,20402,
 24642,40804,44944,69696,94249,698896,1002001,
 1234321,2004002,2138312,2468642,4008004,5221225,
 6948496,85099058,100020001,102030201,104060401,
 121242121]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)