A006721 - OEIS

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A006721 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`2`
`6`		`3`
`7`		`5`
`8`		`11`
`9`		`37`
`10`		`83`
`11`		`274`
`12`		`1217`
`13`		`6161`
`14`		`22833`
`15`		`165713`
`16`		`1249441`
`17`		`9434290`
`18`		`68570323`
`19`		`1013908933`
`20`		`11548470571`
`21`		`142844426789`
`22`		`2279343327171`
`23`		`57760865728994`
`24`		`979023970244321`
`25`		`23510036246274433`
`26`		`771025645214210753`

[1,1,1,1,1,2,3,5,11,37,83,274,1217,6161,22833, 165713,1249441,9434290,68570323,1013908933, 11548470571,142844426789,2279343327171, 57760865728994,979023970244321,23510036246274433, 771025645214210753]

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Last modified June 29 16:39 EDT 2024. Contains 373851 sequences. (Running on oeis4.)