A149840 - OEIS

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

A149840 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`12`
`4`		`36`
`5`		`105`
`6`		`359`
`7`		`1234`
`8`		`4179`
`9`		`15184`
`10`		`55991`
`11`		`204578`
`12`		`771394`
`13`		`2964054`
`14`		`11327531`
`15`		`43884270`
`16`		`172977384`
`17`		`680790080`
`18`		`2693644347`
`19`		`10800095655`
`20`		`43381674853`
`21`		`174545003823`
`22`		`708672027933`
`23`		`2888280123869`
`24`		`11778061217176`
`25`		`48301653756423`
`26`		`198967324198300`
`27`		`820165234102410`
`28`		`3391901879073496`

[1,2,4,12,36,105,359,1234,4179,15184,55991,204578, 771394,2964054,11327531,43884270,172977384, 680790080,2693644347,10800095655,43381674853, 174545003823,708672027933,2888280123869, 11778061217176,48301653756423,198967324198300, 820165234102410,3391901879073496]

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 2 19:54 EDT 2024. Contains 375616 sequences. (Running on oeis4.)