A026715 - OEIS

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A026715 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`13`
`3`		`63`
`4`		`319`
`5`		`1647`
`6`		`8583`
`7`		`44941`
`8`		`235913`
`9`		`1240173`
`10`		`6524919`
`11`		`34346785`
`12`		`180855499`
`13`		`952494047`
`14`		`5017037457`
`15`		`26428222177`
`16`		`139223327493`
`17`		`733452042061`
`18`		`3864043260671`
`19`		`20357263645411`
`20`		`107251092223601`
`21`		`565050705077767`

[1,3,13,63,319,1647,8583,44941,235913,1240173, 6524919,34346785,180855499,952494047,5017037457, 26428222177,139223327493,733452042061, 3864043260671,20357263645411,107251092223601, 565050705077767]

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Last modified April 23 12:08 EDT 2024. Contains 371912 sequences. (Running on oeis4.)