A261648 - OEIS

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A261648 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`10`
`2`		`50`
`3`		`180`
`4`		`550`
`5`		`1512`
`6`		`3820`
`7`		`9040`
`8`		`20310`
`9`		`43670`
`10`		`90472`
`11`		`181540`
`12`		`354180`
`13`		`674040`
`14`		`1254640`
`15`		`2289104`
`16`		`4101430`
`17`		`7228020`
`18`		`12546030`
`19`		`21473940`
`20`		`36281656`
`21`		`60565920`
`22`		`99974140`
`23`		`163297520`
`24`		`264110180`
`25`		`423211938`
`26`		`672244600`
`27`		`1059013320`
`28`		`1655274320`
`29`		`2568068120`

[1,10,50,180,550,1512,3820,9040,20310,43670,90472, 181540,354180,674040,1254640,2289104,4101430, 7228020,12546030,21473940,36281656,60565920, 99974140,163297520,264110180,423211938,672244600, 1059013320,1655274320,2568068120]

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Last modified April 25 10:51 EDT 2024. Contains 371967 sequences. (Running on oeis4.)