A007297 - OEIS

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A007297 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`4`
`4`		`23`
`5`		`156`
`6`		`1162`
`7`		`9192`
`8`		`75819`
`9`		`644908`
`10`		`5616182`
`11`		`49826712`
`12`		`448771622`
`13`		`4092553752`
`14`		`37714212564`
`15`		`350658882768`
`16`		`3285490743987`
`17`		`30989950019532`
`18`		`294031964658430`
`19`		`2804331954047160`
`20`		`26870823304476690`
`21`		`258548658860327880`

[1,1,4,23,156,1162,9192,75819,644908,5616182, 49826712,448771622,4092553752,37714212564, 350658882768,3285490743987,30989950019532, 294031964658430,2804331954047160, 26870823304476690,258548658860327880]

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Last modified April 19 16:21 EDT 2024. Contains 371794 sequences. (Running on oeis4.)