A293561 - OEIS

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

A293561 as a simple table

`n`		`a(n)`
`3`		`3`
`4`		`19`
`5`		`80`
`6`		`286`
`7`		`945`
`8`		`2997`
`9`		`9294`
`10`		`28456`
`11`		`86471`
`12`		`261559`
`13`		`788892`
`14`		`2375010`
`15`		`7141581`
`16`		`21457705`
`17`		`64438874`
`18`		`193447948`
`19`		`580606275`
`20`		`1742343435`
`21`		`5228079240`
`22`		`15686335270`
`23`		`47063200553`
`24`		`141197990749`
`25`		`423610749990`
`26`		`1270865804976`
`27`		`3812664524415`
`28`		`11438127791647`

[3,19,80,286,945,2997,9294,28456,86471,261559, 788892,2375010,7141581,21457705,64438874, 193447948,580606275,1742343435,5228079240, 15686335270,47063200553,141197990749,423610749990, 1270865804976,3812664524415,11438127791647]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 03:30 EDT 2024. Contains 371782 sequences. (Running on oeis4.)