A107307 - OEIS

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A107307 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`15`
`3`		`51`
`4`		`183`
`5`		`655`
`6`		`2381`
`7`		`8653`
`8`		`31539`
`9`		`114927`
`10`		`419001`
`11`		`1527457`
`12`		`5568791`
`13`		`20302171`
`14`		`74016909`
`15`		`269846637`
`16`		`983794491`
`17`		`3586668535`
`18`		`13076103713`
`19`		`47672218297`
`20`		`173801058495`
`21`		`633635426355`
`22`		`2310077203221`
`23`		`8421966964069`

[1,4,15,51,183,655,2381,8653,31539,114927,419001, 1527457,5568791,20302171,74016909,269846637, 983794491,3586668535,13076103713,47672218297, 173801058495,633635426355,2310077203221, 8421966964069]

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Last modified April 23 10:07 EDT 2024. Contains 371905 sequences. (Running on oeis4.)