A148473 - OEIS

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

A148473 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`20`
`5`		`65`
`6`		`226`
`7`		`838`
`8`		`3201`
`9`		`12386`
`10`		`48948`
`11`		`197608`
`12`		`809096`
`13`		`3345155`
`14`		`13980334`
`15`		`59041103`
`16`		`251334992`
`17`		`1076995274`
`18`		`4645807488`
`19`		`20164588874`
`20`		`87973297367`
`21`		`385580488738`
`22`		`1697545399851`
`23`		`7504250584691`
`24`		`33293669209338`
`25`		`148208341418642`
`26`		`661867001127396`
`27`		`2964446051683526`
`28`		`13313133410772356`

[1,1,2,6,20,65,226,838,3201,12386,48948,197608, 809096,3345155,13980334,59041103,251334992, 1076995274,4645807488,20164588874,87973297367, 385580488738,1697545399851,7504250584691, 33293669209338,148208341418642,661867001127396, 2964446051683526,13313133410772356]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 16 10:45 EDT 2024. Contains 371709 sequences. (Running on oeis4.)