A019123 - OEIS

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

A019123 as a simple table

`n`		`a(n)`
`3`		`0`
`4`		`0`
`5`		`4`
`6`		`6`
`7`		`4`
`8`		`30`
`9`		`65`
`10`		`104`
`11`		`277`
`12`		`756`
`13`		`1542`
`14`		`3615`
`15`		`9759`
`16`		`23306`
`17`		`55566`
`18`		`145499`
`19`		`370660`
`20`		`933344`
`21`		`2428144`
`22`		`6345229`
`23`		`16500325`
`24`		`43314782`
`25`		`114383765`
`26`		`302057417`
`27`		`799656246`
`28`		`2124592221`
`29`		`5652658289`
`30`		`15058739676`
`31`		`40201128401`

[0,0,4,6,4,30,65,104,277,756,1542,3615,9759,23306, 55566,145499,370660,933344,2428144,6345229, 16500325,43314782,114383765,302057417,799656246, 2124592221,5652658289,15058739676,40201128401]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)