A218886 - OEIS

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A218886 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`0`
`6`		`0`
`7`		`0`
`8`		`0`
`9`		`0`
`10`		`0`
`11`		`1`
`12`		`12`
`13`		`189`
`14`		`2306`
`15`		`22943`
`16`		`204463`
`17`		`1957813`
`18`		`19180074`

[0,0,0,0,0,0,0,0,0,0,1,12,189,2306,22943,204463, 1957813,19180074]

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Last modified April 1 23:04 EDT 2023. Contains 361717 sequences. (Running on oeis4.)