A209868 - OEIS

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A209868 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`2`
`5`		`0`
`6`		`20`
`7`		`56`
`8`		`114`
`9`		`248`
`10`		`106`
`11`		`1016`
`12`		`1992`
`13`		`4016`
`14`		`6506`
`15`		`7518`
`16`		`24496`
`17`		`50358`
`18`		`121610`
`19`		`261206`
`20`		`483160`

[0,0,0,0,2,0,20,56,114,248,106,1016,1992,4016, 6506,7518,24496,50358,121610,261206,483160]

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)