A022649 - OEIS

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A022649 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`21`
`2`		`252`
`3`		`2275`
`4`		`17052`
`5`		`111594`
`6`		`657419`
`7`		`3557256`
`8`		`17931459`
`9`		`85093393`
`10`		`383211885`
`11`		`1648114587`
`12`		`6803773998`
`13`		`27073141326`
`14`		`104199172863`
`15`		`389047640905`
`16`		`1412682672765`
`17`		`4999550830281`
`18`		`17277525329491`
`19`		`58400376126855`
`20`		`193361098926450`
`21`		`627924447630011`
`22`		`2002332877504113`

[1,21,252,2275,17052,111594,657419,3557256, 17931459,85093393,383211885,1648114587,6803773998, 27073141326,104199172863,389047640905, 1412682672765,4999550830281,17277525329491, 58400376126855,193361098926450,627924447630011, 2002332877504113]

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Last modified June 4 09:20 EDT 2024. Contains 373092 sequences. (Running on oeis4.)