A053649 - OEIS

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

A053649 as a simple table

`n`		`a(n)`
`0`		`11`
`1`		`13`
`2`		`31`
`3`		`113`
`4`		`311`
`5`		`1117`
`6`		`7121`
`7`		`11113`
`8`		`31121`
`9`		`111119`
`10`		`911111`
`11`		`1111151`
`12`		`1111157`
`13`		`7111123`
`14`		`31111121`
`15`		`111111113`
`16`		`311111131`
`17`		`1111111121`
`18`		`1111111139`
`19`		`9111111127`
`20`		`71111111147`
`21`		`71111111243`
`22`		`311111111111`
`23`		`1111111111139`
`24`		`9111111111211`

[11,13,31,113,311,1117,7121,11113,31121,111119, 911111,1111151,1111157,7111123,31111121,111111113, 311111131,1111111121,1111111139,9111111127, 71111111147,71111111243,311111111111, 1111111111139,9111111111211]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)