A007043 - OEIS

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A007043 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`5`
`5`		`16`
`6`		`65`
`7`		`260`
`8`		`1085`
`9`		`4600`
`10`		`19845`
`11`		`86725`
`12`		`383251`
`13`		`1709566`
`14`		`7687615`
`15`		`34812519`
`16`		`158614405`
`17`		`726612216`
`18`		`3344696501`
`19`		`15462729645`
`20`		`71763732545`
`21`		`334236300200`
`22`		`1561686608685`
`23`		`7318223046860`
`24`		`34386154568375`
`25`		`161970182441556`
`26`		`764676831501575`
`27`		`3617755131480841`

[1,0,1,1,5,16,65,260,1085,4600,19845,86725,383251, 1709566,7687615,34812519,158614405,726612216, 3344696501,15462729645,71763732545,334236300200, 1561686608685,7318223046860,34386154568375, 161970182441556,764676831501575,3617755131480841]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)