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A156422 as a simple table

n a(n)
0 1
1 1680
2 1756860
3 449345680
4 33899743010
5 896812758240
6 10075020851140
7 65214945341280
8 366766557522330
9 2033591738777760
10 9808527088125024
11 42048089482202384 

[1,1680,1756860,449345680,33899743010,
 896812758240,10075020851140,65214945341280,
 366766557522330,2033591738777760,9808527088125024,
 42048089482202384]

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Last modified April 23 10:13 EDT 2024. Contains 371905 sequences. (Running on oeis4.)