A203643 - OEIS

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A203643 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`		`190899321`
`15`		`1382958439`
`16`		`10480136006`
`17`		`82864611947`
`18`		`682068020031`
`19`		`5832484170844`
`20`		`51717380273487`
`21`		`474706578749477`
`22`		`4503047451718545`
`23`		`44074082550176545`

[1,2,5,15,52,203,877,4140,21147,115975,678570, 4213597,27644437,190899321,1382958439,10480136006, 82864611947,682068020031,5832484170844, 51717380273487,474706578749477,4503047451718545, 44074082550176545]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)