A000335 - OEIS

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

A000335 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`15`
`4`		`45`
`5`		`120`
`6`		`331`
`7`		`855`
`8`		`2214`
`9`		`5545`
`10`		`13741`
`11`		`33362`
`12`		`80091`
`13`		`189339`
`14`		`442799`
`15`		`1023192`
`16`		`2340904`
`17`		`5302061`
`18`		`11902618`
`19`		`26488454`
`20`		`58479965`
`21`		`128120214`
`22`		`278680698`
`23`		`602009786`
`24`		`1292027222`
`25`		`2755684669`
`26`		`5842618668`
`27`		`12317175320`
`28`		`25825429276`
`29`		`53865355154`
`30`		`111786084504`
`31`		`230867856903`
`32`		`474585792077`
`33`		`971209629993`

[1,5,15,45,120,331,855,2214,5545,13741,33362, 80091,189339,442799,1023192,2340904,5302061, 11902618,26488454,58479965,128120214,278680698, 602009786,1292027222,2755684669,5842618668, 12317175320,25825429276,53865355154,111786084504, 230867856903,474585792077,971209629993]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)