A181090 - OEIS

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A181090 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`9`
`4`		`28`
`5`		`126`
`6`		`585`
`7`		`2198`
`8`		`9632`
`9`		`44226`
`10`		`167832`
`11`		`704970`
`12`		`3543517`
`13`		`12649338`
`14`		`53609220`
`15`		`257397588`
`16`		`1000032768`
`17`		`4073003174`
`18`		`19720373400`
`19`		`73088555292`
`20`		`323884878912`
`21`		`1476102415284`
`22`		`5555586582000`
`23`		`23533806109394`

[1,1,9,28,126,585,2198,9632,44226,167832,704970, 3543517,12649338,53609220,257397588,1000032768, 4073003174,19720373400,73088555292,323884878912, 1476102415284,5555586582000,23533806109394]

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