A002190 - OEIS

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A002190 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`33`
`5`		`456`
`6`		`9460`
`7`		`274800`
`8`		`10643745`
`9`		`530052880`
`10`		`32995478376`
`11`		`2510382661920`
`12`		`229195817258100`
`13`		`24730000147369440`
`14`		`3113066087894608560`
`15`		`452168671458789789504`
`16`		`75059305956331837485345`
`17`		`14121026957032156557396000`
`18`		`2988687741694684876495689040`

[0,1,1,4,33,456,9460,274800,10643745,530052880, 32995478376,2510382661920,229195817258100, 24730000147369440,3113066087894608560, 452168671458789789504,75059305956331837485345, 14121026957032156557396000, 2988687741694684876495689040]

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Last modified April 11 18:00 EDT 2021. Contains 342888 sequences. (Running on oeis4.)