A015453 - OEIS

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

A015453 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`8`
`3`		`57`
`4`		`407`
`5`		`2906`
`6`		`20749`
`7`		`148149`
`8`		`1057792`
`9`		`7552693`
`10`		`53926643`
`11`		`385039194`
`12`		`2749201001`
`13`		`19629446201`
`14`		`140155324408`
`15`		`1000716717057`
`16`		`7145172343807`
`17`		`51016923123706`
`18`		`364263634209749`
`19`		`2600862362591949`
`20`		`18570300172353392`

[1,1,8,57,407,2906,20749,148149,1057792,7552693, 53926643,385039194,2749201001,19629446201, 140155324408,1000716717057,7145172343807, 51016923123706,364263634209749,2600862362591949, 18570300172353392]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 05:36 EDT 2024. Contains 371918 sequences. (Running on oeis4.)