A031506 - OEIS

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A031506 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`13`
`3`		`36`
`4`		`96`
`5`		`253`
`6`		`664`
`7`		`1740`
`8`		`4557`
`9`		`11932`
`10`		`31240`
`11`		`81789`
`12`		`214128`
`13`		`560596`
`14`		`1467661`
`15`		`3842388`
`16`		`10059504`
`17`		`26336125`
`18`		`68948872`
`19`		`180510492`
`20`		`472582605`
`21`		`1237237324`
`22`		`3239129368`
`23`		`8480150781`
`24`		`22201322976`

[1,4,13,36,96,253,664,1740,4557,11932,31240,81789, 214128,560596,1467661,3842388,10059504,26336125, 68948872,180510492,472582605,1237237324, 3239129368,8480150781,22201322976]

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Last modified May 12 00:47 EDT 2024. Contains 372431 sequences. (Running on oeis4.)