A026989 - OEIS

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A026989 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`14`
`5`		`115`
`6`		`660`
`7`		`3805`
`8`		`20520`
`9`		`109779`
`10`		`551774`
`11`		`2921313`
`12`		`14482320`
`13`		`71576096`
`14`		`349292330`
`15`		`1804636693`
`16`		`8745745676`
`17`		`42107640345`
`18`		`203559063050`
`19`		`1040682784201`
`20`		`5002217935308`
`21`		`23823427871991`
`22`		`114772726273528`
`23`		`583453635620973`
`24`		`2795288971320092`
`25`		`13246283464422706`
`26`		`63736681240596050`

[1,14,115,660,3805,20520,109779,551774,2921313, 14482320,71576096,349292330,1804636693,8745745676, 42107640345,203559063050,1040682784201, 5002217935308,23823427871991,114772726273528, 583453635620973,2795288971320092, 13246283464422706,63736681240596050]

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Last modified August 10 19:25 EDT 2024. Contains 375058 sequences. (Running on oeis4.)