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A225686 as a simple table

n a(n)
1 1
2 21
3 2584
4 2178309
5 12586269025
6 498454011879264
7 135301852344706746049
8 251728825683549488150424261
9 3210056809456107725247980776292056
10 280571172992510140037611932413038677189525 

[1,21,2584,2178309,12586269025,498454011879264,
 135301852344706746049,251728825683549488150424261,
 3210056809456107725247980776292056,
 280571172992510140037611932413038677189525]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)