A026978 - OEIS

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A026978 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`8`
`4`		`41`
`5`		`208`
`6`		`856`
`7`		`4540`
`8`		`18527`
`9`		`86896`
`10`		`343976`
`11`		`1794146`
`12`		`7114521`
`13`		`33019048`
`14`		`129946039`
`15`		`674164700`
`16`		`2656947487`
`17`		`12352433072`
`18`		`48571744683`
`19`		`251186392774`
`20`		`988685996629`
`21`		`4614598284024`
`22`		`18151637670487`
`23`		`93662525206528`
`24`		`368685987098199`
`25`		`1727749480803800`
`26`		`6800520785920773`

[1,8,41,208,856,4540,18527,86896,343976,1794146, 7114521,33019048,129946039,674164700,2656947487, 12352433072,48571744683,251186392774,988685996629, 4614598284024,18151637670487,93662525206528, 368685987098199,1727749480803800,6800520785920773]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)