A001233 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A001233 as a simple table

`n`		`a(n)`
`6`		`1`
`7`		`21`
`8`		`322`
`9`		`4536`
`10`		`63273`
`11`		`902055`
`12`		`13339535`
`13`		`206070150`
`14`		`3336118786`
`15`		`56663366760`
`16`		`1009672107080`
`17`		`18861567058880`
`18`		`369012649234384`
`19`		`7551527592063024`
`20`		`161429736530118960`
`21`		`3599979517947607200`
`22`		`83637381699544802976`
`23`		`2021687376910682741568`
`24`		`50779532534302850198976`
`25`		`1323714091579185857760000`

[1,21,322,4536,63273,902055,13339535,206070150, 3336118786,56663366760,1009672107080, 18861567058880,369012649234384,7551527592063024, 161429736530118960,3599979517947607200, 83637381699544802976,2021687376910682741568, 50779532534302850198976,1323714091579185857760000]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)