A056971 - OEIS

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A056971 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`3`
`5`		`8`
`6`		`20`
`7`		`80`
`8`		`210`
`9`		`896`
`10`		`3360`
`11`		`19200`
`12`		`79200`
`13`		`506880`
`14`		`2745600`
`15`		`21964800`
`16`		`108108000`
`17`		`820019200`
`18`		`5227622400`
`19`		`48881664000`
`20`		`319258368000`
`21`		`3143467008000`
`22`		`25540669440000`
`23`		`299677188096000`
`24`		`2261626278912000`
`25`		`25732281217843200`
`26`		`241240136417280000`

[1,1,1,2,3,8,20,80,210,896,3360,19200,79200, 506880,2745600,21964800,108108000,820019200, 5227622400,48881664000,319258368000,3143467008000, 25540669440000,299677188096000,2261626278912000, 25732281217843200,241240136417280000]

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Last modified April 18 15:35 EDT 2024. Contains 371780 sequences. (Running on oeis4.)