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A190875 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 25
5 121
6 361
7 841
8 21841
9 184465
10 912241
11 3334321
12 89824681
13 1063799881
14 7325422105
15 36454050361
16 1017339566881
17 15314809967521
18 134865698721121
19 848781820990945
20 24508030788375481
21 443521231499750041
22 4748434334677932361

[1,1,1,1,25,121,361,841,21841,184465,912241,
 3334321,89824681,1063799881,7325422105,
 36454050361,1017339566881,15314809967521,
 134865698721121,848781820990945,24508030788375481,
 443521231499750041,4748434334677932361]

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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)