A007911 - OEIS

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A007911 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`1`
`5`		`5`
`6`		`7`
`7`		`33`
`8`		`57`
`9`		`279`
`10`		`561`
`11`		`2895`
`12`		`6555`
`13`		`35685`
`14`		`89055`
`15`		`509985`
`16`		`1381905`
`17`		`8294895`
`18`		`24137505`
`19`		`151335135`
`20`		`468934515`
`21`		`3061162125`
`22`		`10033419375`
`23`		`68000295825`
`24`		`234484536825`
`25`		`1645756410375`
`26`		`5943863027025`
`27`		`43105900812975`
`28`		`162446292283275`
`29`		`1214871076343925`
`30`		`4761954230608575`

[1,1,5,7,33,57,279,561,2895,6555,35685,89055, 509985,1381905,8294895,24137505,151335135, 468934515,3061162125,10033419375,68000295825, 234484536825,1645756410375,5943863027025, 43105900812975,162446292283275,1214871076343925, 4761954230608575]

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Last modified April 23 19:56 EDT 2024. Contains 371916 sequences. (Running on oeis4.)