A023019 - OEIS

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A023019 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`21`
`2`		`252`
`3`		`2233`
`4`		`16170`
`5`		`100926`
`6`		`560945`
`7`		`2837418`
`8`		`13266099`
`9`		`57994475`
`10`		`239170239`
`11`		`937026279`
`12`		`3507380170`
`13`		`12601619226`
`14`		`43628951025`
`15`		`146036139347`
`16`		`473924014599`
`17`		`1494785958435`
`18`		`4591920193357`
`19`		`13764656869425`
`20`		`40328218603134`

[1,21,252,2233,16170,100926,560945,2837418, 13266099,57994475,239170239,937026279,3507380170, 12601619226,43628951025,146036139347,473924014599, 1494785958435,4591920193357,13764656869425, 40328218603134]

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Last modified April 23 13:51 EDT 2024. Contains 371914 sequences. (Running on oeis4.)