A173385 - OEIS

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A173385 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`18`
`5`		`66`
`6`		`252`
`7`		`1176`
`8`		`5768`
`9`		`34216`
`10`		`209552`
`11`		`1521696`
`12`		`11196768`
`13`		`96160416`
`14`		`825730752`
`15`		`8183634816`
`16`		`80315504768`
`17`		`902135948416`
`18`		`9960471556352`
`19`		`125042593153536`
`20`		`1533993841632768`
`21`		`21284696790729216`
`22`		`287227371473636352`
`23`		`4364939476603385856`

[1,1,2,6,18,66,252,1176,5768,34216,209552,1521696, 11196768,96160416,825730752,8183634816, 80315504768,902135948416,9960471556352, 125042593153536,1533993841632768, 21284696790729216,287227371473636352, 4364939476603385856]

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Last modified May 2 17:35 EDT 2024. Contains 372203 sequences. (Running on oeis4.)