A231539 - OEIS

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A231539 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`20`
`3`		`116`
`4`		`589`
`5`		`3001`
`6`		`15644`
`7`		`81179`
`8`		`420243`
`9`		`2177937`
`10`		`11287977`
`11`		`58494710`
`12`		`303132340`
`13`		`1570918959`
`14`		`8140881877`
`15`		`42188034539`
`16`		`218628945511`
`17`		`1132989453013`
`18`		`5871432030067`
`19`		`30427217632524`
`20`		`157681390442587`
`21`		`817144077007238`

[4,20,116,589,3001,15644,81179,420243,2177937, 11287977,58494710,303132340,1570918959,8140881877, 42188034539,218628945511,1132989453013, 5871432030067,30427217632524,157681390442587, 817144077007238]

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Last modified May 16 14:39 EDT 2024. Contains 372554 sequences. (Running on oeis4.)