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A260404 as a simple table

n a(n)
0 1
1 1
2 2
3 192
4 6115295232
5 15436756676507918107049554083840
6 18356962141505758798331790171539976807981714702571497465907439808868887035904000000

[1,1,2,192,6115295232,
 15436756676507918107049554083840,
 18356962141505758798331790171539976807981714702571\
 497465907439808868887035904000000]

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Last modified February 17 23:35 EST 2020. Contains 332006 sequences. (Running on oeis4.)