A140420 - OEIS

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

A140420 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`3`
`3`		`13`
`4`		`45`
`5`		`151`
`6`		`483`
`7`		`1513`
`8`		`4665`
`9`		`14251`
`10`		`43263`
`11`		`130813`
`12`		`394485`
`13`		`1187551`
`14`		`3570843`
`15`		`10728913`
`16`		`32219505`
`17`		`96724051`
`18`		`290303223`
`19`		`871171813`
`20`		`2614039725`
`21`		`7843167751`
`22`		`23531600403`
`23`		`70598995513`
`24`		`211805375145`
`25`		`635432902651`

[0,1,3,13,45,151,483,1513,4665,14251,43263,130813, 394485,1187551,3570843,10728913,32219505,96724051, 290303223,871171813,2614039725,7843167751, 23531600403,70598995513,211805375145,635432902651]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)