A271771 - OEIS

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

A271771 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`18`
`4`		`53`
`5`		`140`
`6`		`347`
`7`		`826`
`8`		`1913`
`9`		`4344`
`10`		`9719`
`11`		`21494`
`12`		`47093`
`13`		`102388`
`14`		`221171`
`15`		`475122`
`16`		`1015793`
`17`		`2162672`
`18`		`4587503`
`19`		`9699310`
`20`		`20447213`
`21`		`42991596`
`22`		`90177515`
`23`		`188743658`
`24`		`394264553`
`25`		`822083560`
`26`		`1711276007`
`27`		`3556769766`
`28`		`7381975013`
`29`		`15300820964`
`30`		`31675383779`

[1,5,18,53,140,347,826,1913,4344,9719,21494,47093, 102388,221171,475122,1015793,2162672,4587503, 9699310,20447213,42991596,90177515,188743658, 394264553,822083560,1711276007,3556769766, 7381975013,15300820964,31675383779]

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 29 06:09 EDT 2024. Contains 375510 sequences. (Running on oeis4.)