A000256 - OEIS

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A000256 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`1`
`5`		`0`
`6`		`1`
`7`		`3`
`8`		`12`
`9`		`52`
`10`		`241`
`11`		`1173`
`12`		`5929`
`13`		`30880`
`14`		`164796`
`15`		`897380`
`16`		`4970296`
`17`		`27930828`
`18`		`158935761`
`19`		`914325657`
`20`		`5310702819`
`21`		`31110146416`
`22`		`183634501753`
`23`		`1091371140915`
`24`		`6526333259312`
`25`		`39246152584304`
`26`		`237214507388796`
`27`		`1440503185260748`

[1,1,0,1,3,12,52,241,1173,5929,30880,164796, 897380,4970296,27930828,158935761,914325657, 5310702819,31110146416,183634501753,1091371140915, 6526333259312,39246152584304,237214507388796, 1440503185260748]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)