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A195509 as a simple table

n a(n)
0 1
1 1
2 1
3 4
4 25
5 96
6 481
7 3368
8 20721
9 141760
10 1146721
11 9098112
12 77652169
13 726208640
14 6891125697
15 69344336896
16 738718169569
17 8076031881216
18 92647353941569
19 1106883171037184
20 13616813607795321
21 174298975125127168
22 2304515271134124577

[1,1,1,4,25,96,481,3368,20721,141760,1146721,
 9098112,77652169,726208640,6891125697,69344336896,
 738718169569,8076031881216,92647353941569,
 1106883171037184,13616813607795321,
 174298975125127168,2304515271134124577]

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Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)