A231581 - OEIS

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A231581 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`28`
`3`		`124`
`4`		`602`
`5`		`2776`
`6`		`12922`
`7`		`60720`
`8`		`286047`
`9`		`1335296`
`10`		`6256326`
`11`		`29377828`
`12`		`137595239`
`13`		`644951590`
`14`		`3024402309`
`15`		`14175895645`
`16`		`66459189937`
`17`		`311583082104`
`18`		`1460702584712`
`19`		`6848241858778`
`20`		`32106603868468`
`21`		`150524267596760`
`22`		`705711781367756`

[4,28,124,602,2776,12922,60720,286047,1335296, 6256326,29377828,137595239,644951590,3024402309, 14175895645,66459189937,311583082104, 1460702584712,6848241858778,32106603868468, 150524267596760,705711781367756]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)