A157003 - OEIS

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

A157003 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`10`
`5`		`27`
`6`		`78`
`7`		`234`
`8`		`722`
`9`		`2274`
`10`		`7280`
`11`		`23617`
`12`		`77466`
`13`		`256481`
`14`		`856016`
`15`		`2876940`
`16`		`9728090`
`17`		`33072228`
`18`		`112974592`
`19`		`387580856`
`20`		`1334821448`
`21`		`4613225722`
`22`		`15994465796`
`23`		`55615889745`
`24`		`193904367362`
`25`		`677709772035`
`26`		`2374027931492`
`27`		`8333765738127`

[1,1,2,4,10,27,78,234,722,2274,7280,23617,77466, 256481,856016,2876940,9728090,33072228,112974592, 387580856,1334821448,4613225722,15994465796, 55615889745,193904367362,677709772035, 2374027931492,8333765738127]

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 16 05:19 EDT 2024. Contains 374343 sequences. (Running on oeis4.)