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A219419 as a simple table

n a(n)
1 21
2 454
3 9926
4 218838
5 4775307
6 104434119
7 2284814260
8 49979133672
9 1093274545336
10 23915155162485
11 523138192294728
12 11443519356879492
13 250324199629970283
14 5475780830828522030
15 119781370244825665556

[21,454,9926,218838,4775307,104434119,2284814260,
 49979133672,1093274545336,23915155162485,
 523138192294728,11443519356879492,
 250324199629970283,5475780830828522030,
 119781370244825665556]

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Last modified April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)