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A081068 as a simple table

n a(n)
0 1
1 4
2 25
3 169
4 1156
5 7921
6 54289
7 372100
8 2550409
9 17480761
10 119814916
11 821223649
12 5628750625
13 38580030724
14 264431464441
15 1812440220361
16 12422650078084
17 85146110326225
18 583600122205489
19 4000054745112196
20 27416783093579881

[1,4,25,169,1156,7921,54289,372100,2550409,
 17480761,119814916,821223649,5628750625,
 38580030724,264431464441,1812440220361,
 12422650078084,85146110326225,583600122205489,
 4000054745112196,27416783093579881]

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Last modified April 25 13:01 EDT 2024. Contains 371969 sequences. (Running on oeis4.)