A121635 - OEIS

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A121635 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`8`
`5`		`42`
`6`		`264`
`7`		`1920`
`8`		`15840`
`9`		`146160`
`10`		`1491840`
`11`		`16692480`
`12`		`203212800`
`13`		`2674425600`
`14`		`37841126400`
`15`		`572885913600`
`16`		`9240898867200`
`17`		`158228598528000`
`18`		`2866422214656000`
`19`		`54775863926784000`
`20`		`1101208277385216000`
`21`		`23234214178086912000`
`22`		`513342323725271040000`

[1,1,2,8,42,264,1920,15840,146160,1491840, 16692480,203212800,2674425600,37841126400, 572885913600,9240898867200,158228598528000, 2866422214656000,54775863926784000, 1101208277385216000,23234214178086912000, 513342323725271040000]

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Last modified April 24 14:09 EDT 2024. Contains 371960 sequences. (Running on oeis4.)