A001861 - OEIS

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A001861 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`22`
`4`		`94`
`5`		`454`
`6`		`2430`
`7`		`14214`
`8`		`89918`
`9`		`610182`
`10`		`4412798`
`11`		`33827974`
`12`		`273646526`
`13`		`2326980998`
`14`		`20732504062`
`15`		`192982729350`
`16`		`1871953992254`
`17`		`18880288847750`
`18`		`197601208474238`
`19`		`2142184050841734`
`20`		`24016181943732414`
`21`		`278028611833689478`
`22`		`3319156078802044158`
`23`		`40811417293301014150`

[1,2,6,22,94,454,2430,14214,89918,610182,4412798, 33827974,273646526,2326980998,20732504062, 192982729350,1871953992254,18880288847750, 197601208474238,2142184050841734, 24016181943732414,278028611833689478, 3319156078802044158,40811417293301014150]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)