A001890 - OEIS

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

A001890 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`10`
`5`		`34`
`6`		`206`
`7`		`1351`
`8`		`10543`
`9`		`92708`
`10`		`912884`
`11`		`9917445`
`12`		`117838808`
`13`		`1519483258`
`14`		`21128310078`
`15`		`315093762147`
`16`		`5016410089130`
`17`		`84909414423784`
`18`		`1522548805068310`
`19`		`28830824064870329`
`20`		`574880701875755325`
`21`		`12039866150973004846`
`22`		`264230694283295736788`
`23`		`6063848537910027941323`

[1,10,34,206,1351,10543,92708,912884,9917445, 117838808,1519483258,21128310078,315093762147, 5016410089130,84909414423784,1522548805068310, 28830824064870329,574880701875755325, 12039866150973004846,264230694283295736788, 6063848537910027941323]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)