A027472 - OEIS

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A027472 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`9`
`5`		`54`
`6`		`270`
`7`		`1215`
`8`		`5103`
`9`		`20412`
`10`		`78732`
`11`		`295245`
`12`		`1082565`
`13`		`3897234`
`14`		`13817466`
`15`		`48361131`
`16`		`167403915`
`17`		`573956280`
`18`		`1951451352`
`19`		`6586148313`
`20`		`22082967873`
`21`		`73609892910`
`22`		`244074908070`
`23`		`805447196631`
`24`		`2646469360359`
`25`		`8661172452084`
`26`		`28242953648100`
`27`		`91789599356325`
`28`		`297398301914493`
`29`		`960825283108362`
`30`		`3095992578904722`

[1,9,54,270,1215,5103,20412,78732,295245,1082565, 3897234,13817466,48361131,167403915,573956280, 1951451352,6586148313,22082967873,73609892910, 244074908070,805447196631,2646469360359, 8661172452084,28242953648100,91789599356325, 297398301914493,960825283108362,3095992578904722]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)