A021854 - OEIS

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A021854 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`20`
`2`		`265`
`3`		`2940`
`4`		`29601`
`5`		`280740`
`6`		`2558905`
`7`		`22683980`
`8`		`197048401`
`9`		`1685772660`
`10`		`14253277545`
`11`		`119401486620`
`12`		`992861126401`
`13`		`8206523123780`
`14`		`67497981692185`
`15`		`552905862106860`
`16`		`4513706683463601`
`17`		`36742894880462100`

[1,20,265,2940,29601,280740,2558905,22683980, 197048401,1685772660,14253277545,119401486620, 992861126401,8206523123780,67497981692185, 552905862106860,4513706683463601, 36742894880462100]

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Last modified April 24 04:02 EDT 2024. Contains 371918 sequences. (Running on oeis4.)