A121124 - OEIS

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A121124 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`4`
`4`		`21`
`5`		`138`
`6`		`864`
`7`		`5526`
`8`		`34992`
`9`		`221724`
`10`		`1399680`
`11`		`8818632`
`12`		`55427328`
`13`		`347684400`
`14`		`2176782336`
`15`		`13604912928`
`16`		`84894511104`
`17`		`528958247616`
`18`		`3291294892032`
`19`		`20453047668864`
`20`		`126949945835520`
`21`		`787089669219072`
`22`		`4874877920083968`
`23`		`30163307160752640`
`24`		`186464080443211776`
`25`		`1151689908801235968`

[1,4,21,138,864,5526,34992,221724,1399680,8818632, 55427328,347684400,2176782336,13604912928, 84894511104,528958247616,3291294892032, 20453047668864,126949945835520,787089669219072, 4874877920083968,30163307160752640, 186464080443211776,1151689908801235968]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)