A222604 - OEIS

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A222604 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`0`
`4`		`6`
`5`		`20`
`6`		`20`
`7`		`70`
`8`		`685`
`9`		`2808`
`10`		`5370`
`11`		`21294`
`12`		`123410`
`13`		`514792`
`14`		`1341616`
`15`		`5472216`
`16`		`25106526`
`17`		`105042770`
`18`		`321557310`
`19`		`1329068686`
`20`		`5447475968`
`21`		`22826820144`
`22`		`76079350800`
`23`		`316839140020`
`24`		`1228204709225`
`25`		`5153985361728`
`26`		`17971182592538`

[1,0,0,6,20,20,70,685,2808,5370,21294,123410, 514792,1341616,5472216,25106526,105042770, 321557310,1329068686,5447475968,22826820144, 76079350800,316839140020,1228204709225, 5153985361728,17971182592538]

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Last modified September 2 22:46 EDT 2024. Contains 375620 sequences. (Running on oeis4.)