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A057089 as a simple table

n a(n)
0 1
1 6
2 42
3 288
4 1980
5 13608
6 93528
7 642816
8 4418064
9 30365280
10 208700064
11 1434392064
12 9858552768
13 67757668992
14 465697330560
15 3200729997312
16 21998563967232
17 151195763787264
18 1039165966526976
19 7142170381885440

[1,6,42,288,1980,13608,93528,642816,4418064,
 30365280,208700064,1434392064,9858552768,
 67757668992,465697330560,3200729997312,
 21998563967232,151195763787264,1039165966526976,
 7142170381885440]

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Last modified May 18 19:34 EDT 2024. Contains 372665 sequences. (Running on oeis4.)