A109499 - OEIS

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A109499 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`4`
`3`		`12`
`4`		`52`
`5`		`204`
`6`		`820`
`7`		`3276`
`8`		`13108`
`9`		`52428`
`10`		`209716`
`11`		`838860`
`12`		`3355444`
`13`		`13421772`
`14`		`53687092`
`15`		`214748364`
`16`		`858993460`
`17`		`3435973836`
`18`		`13743895348`
`19`		`54975581388`
`20`		`219902325556`
`21`		`879609302220`
`22`		`3518437208884`
`23`		`14073748835532`

[1,0,4,12,52,204,820,3276,13108,52428,209716, 838860,3355444,13421772,53687092,214748364, 858993460,3435973836,13743895348,54975581388, 219902325556,879609302220,3518437208884, 14073748835532]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)