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A120605 as a simple table

n a(n)
0 1
1 4
2 36
3 984
4 31716
5 1140552
6 43895208
7 1768717872
8 73674176868
9 3146885203432
10 137085166193976
11 6066992348458704
12 272023207778276136
13 12330039492509279184
14 564072488005316830416
15 26010805156782400648800

[1,4,36,984,31716,1140552,43895208,1768717872,
 73674176868,3146885203432,137085166193976,
 6066992348458704,272023207778276136,
 12330039492509279184,564072488005316830416,
 26010805156782400648800]

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)