A080421 - OEIS

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A080421 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`10`
`2`		`66`
`3`		`360`
`4`		`1755`
`5`		`7938`
`6`		`34020`
`7`		`139968`
`8`		`557685`
`9`		`2165130`
`10`		`8227494`
`11`		`30705480`
`12`		`112842639`
`13`		`409209570`
`14`		`1466777160`
`15`		`5203870272`
`16`		`18294856425`
`17`		`63795240522`
`18`		`220829678730`
`19`		`759344158440`
`20`		`2595329855811`
`21`		`8821564534530`
`22`		`29832927334956`
`23`		`100419390748800`
`24`		`336561864306525`

[1,10,66,360,1755,7938,34020,139968,557685, 2165130,8227494,30705480,112842639,409209570, 1466777160,5203870272,18294856425,63795240522, 220829678730,759344158440,2595329855811, 8821564534530,29832927334956,100419390748800, 336561864306525]

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Last modified May 14 14:46 EDT 2024. Contains 372533 sequences. (Running on oeis4.)