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A321963 as a simple table

n a(n)
0 1
1 4
2 36
3 444
4 6636
5 114084
6 2194596
7 46460124
8 1070653356
9 26650132164
10 712373143716
11 20355134459004
12 619356569885676
13 20002325474150244
14 683641504802995236
15 24662695086736585884
16 936845038595867508396
17 37388655553571504769924
18 1564425694139017014501156

[1,4,36,444,6636,114084,2194596,46460124,
 1070653356,26650132164,712373143716,
 20355134459004,619356569885676,20002325474150244,
 683641504802995236,24662695086736585884,
 936845038595867508396,37388655553571504769924,
 1564425694139017014501156]

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Last modified April 18 06:24 EDT 2024. Contains 371769 sequences. (Running on oeis4.)