A026938 - OEIS

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

A026938 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`12`
`5`		`30`
`6`		`76`
`7`		`196`
`8`		`518`
`9`		`1422`
`10`		`3915`
`11`		`10813`
`12`		`29964`
`13`		`83304`
`14`		`232323`
`15`		`649845`
`16`		`1822824`
`17`		`5147328`
`18`		`14727168`
`19`		`42171849`
`20`		`120870324`
`21`		`346757334`
`22`		`995742748`
`23`		`2862099185`
`24`		`8234447672`
`25`		`23713180780`
`26`		`68350541480`
`27`		`197188167735`

[1,1,2,5,12,30,76,196,518,1422,3915,10813,29964, 83304,232323,649845,1822824,5147328,14727168, 42171849,120870324,346757334,995742748,2862099185, 8234447672,23713180780,68350541480,197188167735]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 18 06:08 EDT 2024. Contains 371767 sequences. (Running on oeis4.)