A067455 - OEIS

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A067455 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`24`
`5`		`120`
`6`		`720`
`7`		`5040`
`8`		`40320`
`9`		`0`
`10`		`39916800`
`11`		`239500800`
`12`		`2075673600`
`13`		`21794572800`
`14`		`261534873600`
`15`		`3487131648000`
`16`		`50812489728000`
`17`		`800296713216000`
`18`		`13516122267648000`
`19`		`0`
`20`		`25545471085854720000`
`21`		`281000181944401920000`

[1,1,2,6,24,120,720,5040,40320,0,39916800, 239500800,2075673600,21794572800,261534873600, 3487131648000,50812489728000,800296713216000, 13516122267648000,0,25545471085854720000, 281000181944401920000]

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Last modified September 27 04:57 EDT 2023. Contains 365674 sequences. (Running on oeis4.)