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A030649 as a simple table

n a(n)
0 1
1 56
2 1463
3 24320
4 293930
5 2785552
6 21737254
7 144538624
8 839848450
9 4347450800
10 20355385710
11 87265194240
12 345992859975
13 1279301331000
14 4442249264625
15 14573017267200
16 45398364338250
17 134897996890800
18 383822534859750
19 1049290591104000
20 2764459117589400

[1,56,1463,24320,293930,2785552,21737254,
 144538624,839848450,4347450800,20355385710,
 87265194240,345992859975,1279301331000,
 4442249264625,14573017267200,45398364338250,
 134897996890800,383822534859750,1049290591104000,
 2764459117589400]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)