A023872 - OEIS

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A023872 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`9`
`3`		`36`
`4`		`136`
`5`		`477`
`6`		`1703`
`7`		`5746`
`8`		`19099`
`9`		`61622`
`10`		`195366`
`11`		`607069`
`12`		`1856516`
`13`		`5586870`
`14`		`16579850`
`15`		`48549116`
`16`		`140438966`
`17`		`401592524`
`18`		`1136121837`
`19`		`3181700219`
`20`		`8825733603`
`21`		`24261363403`
`22`		`66124058839`
`23`		`178757752892`
`24`		`479513547399`
`25`		`1276792213203`
`26`		`3375707760306`
`27`		`8864712158225`

[1,1,9,36,136,477,1703,5746,19099,61622,195366, 607069,1856516,5586870,16579850,48549116, 140438966,401592524,1136121837,3181700219, 8825733603,24261363403,66124058839,178757752892, 479513547399,1276792213203,3375707760306, 8864712158225]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)