A020129 - OEIS

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A020129 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`5`
`5`		`21`
`6`		`109`
`7`		`695`
`8`		`5143`
`9`		`43194`
`10`		`406017`
`11`		`4222570`
`12`		`48137292`
`13`		`596902409`
`14`		`7998492274`
`15`		`115178288737`
`16`		`1773745646540`
`17`		`29089428603256`
`18`		`506156057696642`
`19`		`9313271461618196`
`20`		`180677466355392996`
`21`		`3685820313650017112`

[1,1,1,2,5,21,109,695,5143,43194,406017,4222570, 48137292,596902409,7998492274,115178288737, 1773745646540,29089428603256,506156057696642, 9313271461618196,180677466355392996, 3685820313650017112]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)