A215853 - OEIS

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A215853 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`6`
`5`		`55`
`6`		`540`
`7`		`6412`
`8`		`90734`
`9`		`1515097`
`10`		`29368155`
`11`		`649910349`
`12`		`16178495157`
`13`		`447436384356`
`14`		`13607804913248`
`15`		`451277483034618`
`16`		`16204761730619392`
`17`		`626327433705523558`
`18`		`25924177756443661632`
`19`		`1144012780063556028591`
`20`		`53615833082093775740400`
`21`		`2659498185704802765924159`

[1,6,55,540,6412,90734,1515097,29368155,649910349, 16178495157,447436384356,13607804913248, 451277483034618,16204761730619392, 626327433705523558,25924177756443661632, 1144012780063556028591,53615833082093775740400, 2659498185704802765924159]

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Last modified April 24 10:00 EDT 2024. Contains 371935 sequences. (Running on oeis4.)