A000172 - OEIS

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A000172 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`10`
`3`		`56`
`4`		`346`
`5`		`2252`
`6`		`15184`
`7`		`104960`
`8`		`739162`
`9`		`5280932`
`10`		`38165260`
`11`		`278415920`
`12`		`2046924400`
`13`		`15148345760`
`14`		`112738423360`
`15`		`843126957056`
`16`		`6332299624282`
`17`		`47737325577620`
`18`		`361077477684436`
`19`		`2739270870994736`
`20`		`20836827035351596`
`21`		`158883473753259752`
`22`		`1214171997616258240`

[1,2,10,56,346,2252,15184,104960,739162,5280932, 38165260,278415920,2046924400,15148345760, 112738423360,843126957056,6332299624282, 47737325577620,361077477684436,2739270870994736, 20836827035351596,158883473753259752, 1214171997616258240]

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Last modified April 25 13:36 EDT 2024. Contains 371970 sequences. (Running on oeis4.)