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A005450 as a simple table

n a(n)
1 2
2 1
3 1
4 7
5 5
6 121
7 103
8 5041
9 40321
10 362881
11 329891
12 39916801
13 36846277
14 6227020801
15 87178291201
16 1307674368001
17 1230752346353
18 355687428096001
19 336967037143579
20 121645100408832001
21 2432902008176640001

[2,1,1,7,5,121,103,5041,40321,362881,329891,
 39916801,36846277,6227020801,87178291201,
 1307674368001,1230752346353,355687428096001,
 336967037143579,121645100408832001,
 2432902008176640001]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)