A018037 - OEIS

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

A018037 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`3`
`2`		`8`
`3`		`21`
`4`		`58`
`5`		`160`
`6`		`441`
`7`		`1217`
`8`		`3357`
`9`		`9261`
`10`		`25550`
`11`		`70492`
`12`		`194481`
`13`		`536558`
`14`		`1480324`
`15`		`4084101`
`16`		`11267725`
`17`		`31086799`
`18`		`85766121`
`19`		`236622225`
`20`		`652822777`
`21`		`1801088541`
`22`		`4969066720`
`23`		`13709278307`
`24`		`37822859361`
`25`		`104350401111`
`26`		`287894844440`
`27`		`794280046581`
`28`		`2191358423329`

[1,3,8,21,58,160,441,1217,3357,9261,25550,70492, 194481,536558,1480324,4084101,11267725,31086799, 85766121,236622225,652822777,1801088541, 4969066720,13709278307,37822859361,104350401111, 287894844440,794280046581,2191358423329]

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)