A261072 - OEIS

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

A261072 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`7`
`4`		`9`
`5`		`19`
`6`		`21`
`7`		`57`
`8`		`63`
`9`		`133`
`10`		`171`
`11`		`399`
`12`		`1197`
`13`		`928163`
`14`		`2784489`
`15`		`6497141`
`16`		`8353467`
`17`		`17635097`
`18`		`19491423`
`19`		`52905291`
`20`		`58474269`
`21`		`123445679`
`22`		`158715873`
`23`		`370337037`
`24`		`1111011111`
`25`		`1111211111`
`26`		`3333633333`
`27`		`7778477777`
`28`		`10000899999`
`29`		`21113011109`

[1,3,7,9,19,21,57,63,133,171,399,1197,928163, 2784489,6497141,8353467,17635097,19491423, 52905291,58474269,123445679,158715873,370337037, 1111011111,1111211111,3333633333,7778477777, 10000899999,21113011109]

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 15 00:37 EDT 2024. Contains 374323 sequences. (Running on oeis4.)