A181955 - OEIS

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A181955 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`3`
`4`		`18`
`5`		`90`
`6`		`390`
`7`		`2205`
`8`		`10878`
`9`		`45318`
`10`		`256350`
`11`		`5530305`
`12`		`55869330`
`13`		`865551258`
`14`		`9892489698`
`15`		`78223384785`
`16`		`470010394350`
`17`		`24530527675230`
`18`		`409760923017198`
`19`		`10595007772540113`
`20`		`160826214447439770`
`21`		`1585844008081570650`
`22`		`16787211082925012730`
`23`		`1362379219330719093273`

[0,0,3,18,90,390,2205,10878,45318,256350,5530305, 55869330,865551258,9892489698,78223384785, 470010394350,24530527675230,409760923017198, 10595007772540113,160826214447439770, 1585844008081570650,16787211082925012730, 1362379219330719093273]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)