A218843 - OEIS

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A218843 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`7`
`3`		`20`
`4`		`57`
`5`		`156`
`6`		`438`
`7`		`1220`
`8`		`3398`
`9`		`9468`
`10`		`26380`
`11`		`73496`
`12`		`204780`
`13`		`570556`
`14`		`1589672`
`15`		`4429140`
`16`		`12340436`
`17`		`34382820`
`18`		`95797176`
`19`		`266909376`
`20`		`743660900`
`21`		`2071982512`
`22`		`5772942284`
`23`		`16084528900`
`24`		`44814595084`
`25`		`124862092120`
`26`		`347889834096`

[1,7,20,57,156,438,1220,3398,9468,26380,73496, 204780,570556,1589672,4429140,12340436,34382820, 95797176,266909376,743660900,2071982512, 5772942284,16084528900,44814595084,124862092120, 347889834096]

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Last modified April 23 05:37 EDT 2024. Contains 371906 sequences. (Running on oeis4.)