A203645 - OEIS

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A203645 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`15`
`5`		`52`
`6`		`203`
`7`		`877`
`8`		`4140`
`9`		`21147`
`10`		`115975`
`11`		`678570`
`12`		`4213597`
`13`		`27644437`
`14`		`190899322`
`15`		`1382958545`
`16`		`10480142146`
`17`		`82864869667`
`18`		`682076796009`
`19`		`5832741665152`
`20`		`51724135127267`
`21`		`474868970216557`
`22`		`4506688232943076`
`23`		`44151191130412991`

[1,2,5,15,52,203,877,4140,21147,115975,678570, 4213597,27644437,190899322,1382958545,10480142146, 82864869667,682076796009,5832741665152, 51724135127267,474868970216557,4506688232943076, 44151191130412991]

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Last modified May 5 08:57 EDT 2024. Contains 372264 sequences. (Running on oeis4.)