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A090366 as a simple table

n a(n)
0 1
1 1
2 4
3 21
4 131
5 917
6 6988
7 56965
8 491240
9 4447558
10 42048457
11 413473928
12 4215959294
13 44469487070
14 484303175837
15 5437300482651
16 62848069403649
17 747063566345320
18 9123406697372938
19 114370704441951620
20 1470590692488141315
21 19381056189738194070

[1,1,4,21,131,917,6988,56965,491240,4447558,
 42048457,413473928,4215959294,44469487070,
 484303175837,5437300482651,62848069403649,
 747063566345320,9123406697372938,
 114370704441951620,1470590692488141315,
 19381056189738194070]

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Last modified May 9 18:00 EDT 2024. Contains 372354 sequences. (Running on oeis4.)