A122920 - OEIS

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A122920 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`12`
`4`		`39`
`5`		`129`
`6`		`436`
`7`		`1498`
`8`		`5218`
`9`		`18386`
`10`		`65420`
`11`		`234734`
`12`		`848403`
`13`		`3086001`
`14`		`11288412`
`15`		`41499354`
`16`		`153247278`
`17`		`568188606`
`18`		`2114334312`
`19`		`7893906144`
`20`		`29561195238`
`21`		`111007927386`
`22`		`417918303144`
`23`		`1577061975492`
`24`		`5964172347604`
`25`		`22601012748124`
`26`		`85806694043116`
`27`		`326343785428946`
`28`		`1243200250005995`

[1,1,4,12,39,129,436,1498,5218,18386,65420,234734, 848403,3086001,11288412,41499354,153247278, 568188606,2114334312,7893906144,29561195238, 111007927386,417918303144,1577061975492, 5964172347604,22601012748124,85806694043116, 326343785428946,1243200250005995]

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Last modified September 17 13:03 EDT 2024. Contains 375987 sequences. (Running on oeis4.)