A025266 - OEIS

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A025266 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`0`
`4`		`1`
`5`		`2`
`6`		`6`
`7`		`16`
`8`		`45`
`9`		`126`
`10`		`358`
`11`		`1024`
`12`		`2954`
`13`		`8580`
`14`		`25084`
`15`		`73760`
`16`		`218045`
`17`		`647670`
`18`		`1932230`
`19`		`5787520`
`20`		`17398270`
`21`		`52476700`
`22`		`158765300`
`23`		`481690080`
`24`		`1465239250`
`25`		`4467799212`
`26`		`13653601116`
`27`		`41812009216`
`28`		`128290240180`
`29`		`394338641416`
`30`		`1214165174712`

[1,1,0,1,2,6,16,45,126,358,1024,2954,8580,25084, 73760,218045,647670,1932230,5787520,17398270, 52476700,158765300,481690080,1465239250, 4467799212,13653601116,41812009216,128290240180, 394338641416,1214165174712]

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