A280622 - OEIS

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A280622 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`0`
`3`		`2`
`4`		`0`
`5`		`20`
`6`		`40`
`7`		`182`
`8`		`3360`
`9`		`5320`
`10`		`165480`
`11`		`1193962`
`12`		`7681520`
`13`		`182657020`
`14`		`1028347320`
`15`		`21430373342`
`16`		`296385660480`
`17`		`2926954283120`
`18`		`74104327031560`
`19`		`836520209938322`
`20`		`16747875178596240`
`21`		`336576896391971620`
`22`		`4854838471934266200`
`23`		`128099320528299728902`
`24`		`2250302805832188984800`
`25`		`49372680864950984970520`
`26`		`1245420698064315926211240`

[1,0,0,2,0,20,40,182,3360,5320,165480,1193962, 7681520,182657020,1028347320,21430373342, 296385660480,2926954283120,74104327031560, 836520209938322,16747875178596240, 336576896391971620,4854838471934266200, 128099320528299728902,2250302805832188984800, 49372680864950984970520,1245420698064315926211240]

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Last modified July 24 14:22 EDT 2024. Contains 374584 sequences. (Running on oeis4.)