A004660 - OEIS

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A004660 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`13`
`3`		`43`
`4`		`213`
`5`		`1043`
`6`		`3213`
`7`		`14043`
`8`		`50213`
`9`		`231043`
`10`		`1133213`
`11`		`3444043`
`12`		`15220213`
`13`		`54101043`
`14`		`250303213`
`15`		`1231314043`
`16`		`4134350213`
`17`		`20451531043`
`18`		`102235433213`
`19`		`311155144043`
`20`		`1333553520213`
`21`		`4445545401043`

[1,3,13,43,213,1043,3213,14043,50213,231043, 1133213,3444043,15220213,54101043,250303213, 1231314043,4134350213,20451531043,102235433213, 311155144043,1333553520213,4445545401043]

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)