A001542 - OEIS

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A001542 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`12`
`3`		`70`
`4`		`408`
`5`		`2378`
`6`		`13860`
`7`		`80782`
`8`		`470832`
`9`		`2744210`
`10`		`15994428`
`11`		`93222358`
`12`		`543339720`
`13`		`3166815962`
`14`		`18457556052`
`15`		`107578520350`
`16`		`627013566048`
`17`		`3654502875938`
`18`		`21300003689580`
`19`		`124145519261542`
`20`		`723573111879672`

[0,2,12,70,408,2378,13860,80782,470832,2744210, 15994428,93222358,543339720,3166815962, 18457556052,107578520350,627013566048, 3654502875938,21300003689580,124145519261542, 723573111879672]

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)