A199770 - OEIS

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A199770 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`2`
`4`		`6`
`5`		`18`
`6`		`50`
`7`		`146`
`8`		`426`
`9`		`1282`
`10`		`3810`
`11`		`11394`
`12`		`34082`
`13`		`102338`
`14`		`306658`
`15`		`919874`
`16`		`2759154`
`17`		`8276898`
`18`		`24828386`
`19`		`74484386`
`20`		`223444258`
`21`		`670326242`
`22`		`2010964770`
`23`		`6032902242`
`24`		`18098635298`
`25`		`54295809826`
`26`		`162887261410`
`27`		`488661978274`
`28`		`1465985458850`
`29`		`4397955924386`

[1,0,2,6,18,50,146,426,1282,3810,11394,34082, 102338,306658,919874,2759154,8276898,24828386, 74484386,223444258,670326242,2010964770, 6032902242,18098635298,54295809826,162887261410, 488661978274,1465985458850,4397955924386]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)