A018945 - OEIS

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A018945 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`13`
`4`		`23`
`5`		`252`
`6`		`1011`
`7`		`7399`
`8`		`41917`
`9`		`288815`
`10`		`1888898`
`11`		`13146927`
`12`		`91142757`
`13`		`645483238`
`14`		`4591598912`
`15`		`32980554174`
`16`		`238209736716`

[1,13,23,252,1011,7399,41917,288815,1888898, 13146927,91142757,645483238,4591598912, 32980554174,238209736716]

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Last modified September 3 23:03 EDT 2024. Contains 375679 sequences. (Running on oeis4.)