A028270 - OEIS

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A028270 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`8`
`3`		`26`
`4`		`90`
`5`		`322`
`6`		`1176`
`7`		`4356`
`8`		`16302`
`9`		`61490`
`10`		`233376`
`11`		`890188`
`12`		`3409588`
`13`		`13104756`
`14`		`50517200`
`15`		`195234120`
`16`		`756197910`
`17`		`2934686610`
`18`		`11408741520`
`19`		`44420399100`
`20`		`173191792620`
`21`		`676104403260`
`22`		`2642356838160`
`23`		`10337529691320`
`24`		`40481034410700`

[1,3,8,26,90,322,1176,4356,16302,61490,233376, 890188,3409588,13104756,50517200,195234120, 756197910,2934686610,11408741520,44420399100, 173191792620,676104403260,2642356838160, 10337529691320,40481034410700]

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Last modified May 7 21:53 EDT 2024. Contains 372317 sequences. (Running on oeis4.)