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A305218 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`4`
`3`		`8`
`4`		`15`
`5`		`31`
`6`		`92`
`7`		`264`
`8`		`784`
`9`		`2378`
`10`		`7342`
`11`		`22596`
`12`		`69617`
`13`		`214983`
`14`		`664217`
`15`		`2052307`
`16`		`6342935`
`17`		`19606074`
`18`		`60603932`
`19`		`187335711`
`20`		`579091828`
`21`		`1790098137`
`22`		`5533594957`
`23`		`17105617402`
`24`		`52877461311`
`25`		`163456660240`
`26`		`505283076436`
`27`		`1561949355656`

[0,4,8,15,31,92,264,784,2378,7342,22596,69617, 214983,664217,2052307,6342935,19606074,60603932, 187335711,579091828,1790098137,5533594957, 17105617402,52877461311,163456660240,505283076436, 1561949355656]

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Last modified September 11 17:54 EDT 2024. Contains 375839 sequences. (Running on oeis4.)