A086021 - OEIS

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

A086021 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`65`
`3`		`1065`
`4`		`9065`
`5`		`51940`
`6`		`227556`
`7`		`820260`
`8`		`2548260`
`9`		`7040385`
`10`		`17688385`
`11`		`41082041`
`12`		`89310585`
`13`		`183506960`
`14`		`359122960`
`15`		`673554960`
`16`		`1216893456`
`17`		`2126746665`
`18`		`3608290665`
`19`		`5960927665`
`20`		`9613191665`
`21`		`15167828676`
`22`		`23459298500`
`23`		`35626298500`
`24`		`53202298500`
`25`		`78227501625`
`26`		`113386110201`

[1,65,1065,9065,51940,227556,820260,2548260, 7040385,17688385,41082041,89310585,183506960, 359122960,673554960,1216893456,2126746665, 3608290665,5960927665,9613191665,15167828676, 23459298500,35626298500,53202298500,78227501625, 113386110201]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)