A001397 - OEIS

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A001397 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`24`
`3`		`188`
`4`		`1368`
`5`		`10572`
`6`		`81376`
`7`		`637148`
`8`		`5007560`
`9`		`39638728`
`10`		`314980912`
`11`		`2513038452`
`12`		`20109809792`
`13`		`161359033480`
`14`		`1297640775272`
`15`		`10456351280264`

[4,24,188,1368,10572,81376,637148,5007560, 39638728,314980912,2513038452,20109809792, 161359033480,1297640775272,10456351280264]

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Last modified April 25 10:01 EDT 2024. Contains 371967 sequences. (Running on oeis4.)