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A098698 as a simple table

n a(n)
0 1
1 4
2 64
3 1778
4 73848
5 4188592
6 306690520
7 27893327856
8 3063657097664
9 397720778283584
10 59997757426314624
11 10373545999796847232
12 2032368096229682220160
13 446879795164524710777856 

[1,4,64,1778,73848,4188592,306690520,27893327856,
 3063657097664,397720778283584,59997757426314624,
 10373545999796847232,2032368096229682220160,
 446879795164524710777856]

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Last modified April 24 18:05 EDT 2024. Contains 371962 sequences. (Running on oeis4.)