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A028670 as a simple table

n a(n)
0 1
1 56
2 225792
3 59074412544
4 990862210530017280
5 1063897728694258113372487680
6 73110216322082119251081045710796226560
7 321541978498155599038038914825594113520368216965120 

[1,56,225792,59074412544,990862210530017280,
 1063897728694258113372487680,
 73110216322082119251081045710796226560,
 32154197849815559903803891482559411352036821696512\
 0]

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Last modified April 20 06:53 EDT 2024. Contains 371799 sequences. (Running on oeis4.)