A026980 - OEIS

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A026980 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`8`
`3`		`25`
`4`		`60`
`5`		`147`
`6`		`336`
`7`		`882`
`8`		`1960`
`9`		`4631`
`10`		`10104`
`11`		`25207`
`12`		`54292`
`13`		`125895`
`14`		`268576`
`15`		`653191`
`16`		`1383228`
`17`		`3172981`
`18`		`6679960`
`19`		`15996204`
`20`		`33515856`
`21`		`76350225`
`22`		`159339600`
`23`		`377580850`
`24`		`785368168`
`25`		`1780545051`
`26`		`3692982328`
`27`		`8684805392`
`28`		`17968562880`

[1,3,8,25,60,147,336,882,1960,4631,10104,25207, 54292,125895,268576,653191,1383228,3172981, 6679960,15996204,33515856,76350225,159339600, 377580850,785368168,1780545051,3692982328, 8684805392,17968562880]

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Last modified September 15 22:11 EDT 2024. Contains 375959 sequences. (Running on oeis4.)