A086405 - OEIS

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A086405 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`18`
`3`		`84`
`4`		`396`
`5`		`1872`
`6`		`8856`
`7`		`41904`
`8`		`198288`
`9`		`938304`
`10`		`4440096`
`11`		`21010752`
`12`		`99423936`
`13`		`470479104`
`14`		`2226331008`
`15`		`10535111424`
`16`		`49852682496`
`17`		`235905426432`
`18`		`1116316463616`
`19`		`5282466223104`
`20`		`24996898556928`
`21`		`118286594002944`

[1,4,18,84,396,1872,8856,41904,198288,938304, 4440096,21010752,99423936,470479104,2226331008, 10535111424,49852682496,235905426432, 1116316463616,5282466223104,24996898556928, 118286594002944]

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Last modified April 25 12:28 EDT 2024. Contains 371969 sequences. (Running on oeis4.)