A020100 - OEIS

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

A020100 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`25`
`6`		`137`
`7`		`880`
`8`		`6555`
`9`		`55413`
`10`		`523898`
`11`		`5477111`
`12`		`62737807`
`13`		`781370864`
`14`		`10512989798`
`15`		`151960488891`
`16`		`2348480282847`
`17`		`38643175563196`
`18`		`674499064375772`
`19`		`12447573642571061`
`20`		`242161887228200640`
`21`		`4953311329667740359`

[1,1,1,2,6,25,137,880,6555,55413,523898,5477111, 62737807,781370864,10512989798,151960488891, 2348480282847,38643175563196,674499064375772, 12447573642571061,242161887228200640, 4953311329667740359]

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 8 19:26 EDT 2024. Contains 372341 sequences. (Running on oeis4.)