A056321 - OEIS

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A056321 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`60`
`6`		`900`
`7`		`8400`
`8`		`63000`
`9`		`417120`
`10`		`2551500`
`11`		`14804700`
`12`		`82764000`
`13`		`450518460`
`14`		`2404502100`
`15`		`12646078140`
`16`		`65771433000`
`17`		`339165516120`
`18`		`1737485731740`
`19`		`8855359634100`
`20`		`44952365429940`
`21`		`227475768899460`

[0,0,0,0,60,900,8400,63000,417120,2551500, 14804700,82764000,450518460,2404502100, 12646078140,65771433000,339165516120, 1737485731740,8855359634100,44952365429940, 227475768899460]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)