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A020525 as a simple table

n a(n)
0 1
1 3
2 847
3 45375
4 1770751
5 61871103
6 2063618047
7 67377381375
8 2177548746751
9 70025148104703
10 2246302260789247
11 71969633128677375
12 2304435634414026751
13 73764458297036898303
14 2360822953465975144447
15 75552099118396657893375 

[1,3,847,45375,1770751,61871103,2063618047,
 67377381375,2177548746751,70025148104703,
 2246302260789247,71969633128677375,
 2304435634414026751,73764458297036898303,
 2360822953465975144447,75552099118396657893375]

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Last modified June 4 15:36 EDT 2024. Contains 373099 sequences. (Running on oeis4.)