A002661 - OEIS

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A002661 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`3`
`4`		`5`
`5`		`10`
`6`		`18`
`7`		`35`
`8`		`63`
`9`		`126`
`10`		`231`
`11`		`462`
`12`		`858`
`13`		`1716`
`14`		`3218`
`15`		`6435`
`16`		`12155`
`17`		`24310`
`18`		`46189`
`19`		`92378`
`20`		`176358`
`21`		`352716`
`22`		`676039`
`23`		`1352078`
`24`		`2600150`
`25`		`5200300`
`26`		`10029150`
`27`		`20058300`
`28`		`38779380`
`29`		`77558760`
`30`		`150270098`
`31`		`300540195`
`32`		`583401555`
`33`		`1166803110`
`34`		`2268783825`
`35`		`4537567650`

[1,2,3,5,10,18,35,63,126,231,462,858,1716,3218, 6435,12155,24310,46189,92378,176358,352716,676039, 1352078,2600150,5200300,10029150,20058300, 38779380,77558760,150270098,300540195,583401555, 1166803110,2268783825,4537567650]

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Last modified April 26 12:36 EDT 2024. Contains 371997 sequences. (Running on oeis4.)