A005030 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A005030 as a simple table

`n`		`a(n)`
`0`		`5`
`1`		`15`
`2`		`45`
`3`		`135`
`4`		`405`
`5`		`1215`
`6`		`3645`
`7`		`10935`
`8`		`32805`
`9`		`98415`
`10`		`295245`
`11`		`885735`
`12`		`2657205`
`13`		`7971615`
`14`		`23914845`
`15`		`71744535`
`16`		`215233605`
`17`		`645700815`
`18`		`1937102445`
`19`		`5811307335`
`20`		`17433922005`
`21`		`52301766015`
`22`		`156905298045`
`23`		`470715894135`
`24`		`1412147682405`
`25`		`4236443047215`
`26`		`12709329141645`

[5,15,45,135,405,1215,3645,10935,32805,98415, 295245,885735,2657205,7971615,23914845,71744535, 215233605,645700815,1937102445,5811307335, 17433922005,52301766015,156905298045,470715894135, 1412147682405,4236443047215,12709329141645]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)