A081557 - OEIS

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A081557 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`11`
`5`		`31`
`6`		`107`
`7`		`379`
`8`		`1556`
`9`		`6556`
`10`		`31007`
`11`		`150349`
`12`		`801341`
`13`		`4373461`
`14`		`25853102`
`15`		`156297964`
`16`		`1012382291`
`17`		`6698486371`
`18`		`47089993967`
`19`		`337789490599`
`20`		`2557480572656`
`21`		`19738202807236`
`22`		`159928950077327`
`23`		`1319703681935929`
`24`		`11382338060040761`
`25`		`99896787342523081`

[1,1,2,4,11,31,107,379,1556,6556,31007,150349, 801341,4373461,25853102,156297964,1012382291, 6698486371,47089993967,337789490599,2557480572656, 19738202807236,159928950077327,1319703681935929, 11382338060040761,99896787342523081]

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Last modified April 24 11:21 EDT 2024. Contains 371936 sequences. (Running on oeis4.)