A012231 - OEIS

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A012231 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`1`
`5`		`9`
`6`		`49`
`7`		`281`
`8`		`1345`
`9`		`13233`
`10`		`105441`
`11`		`1179729`
`12`		`10336833`
`13`		`144386553`
`14`		`1580651409`
`15`		`25501409961`
`16`		`316289380737`
`17`		`5869292202465`
`18`		`83559601907649`
`19`		`1744083324947745`
`20`		`27709107620492673`
`21`		`643531258862953065`

[1,1,1,1,1,9,49,281,1345,13233,105441,1179729, 10336833,144386553,1580651409,25501409961, 316289380737,5869292202465,83559601907649, 1744083324947745,27709107620492673, 643531258862953065]

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Last modified July 13 15:08 EDT 2024. Contains 374284 sequences. (Running on oeis4.)