A017771 - OEIS

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A017771 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`55`
`2`		`1485`
`3`		`26235`
`4`		`341055`
`5`		`3478761`
`6`		`28989675`
`7`		`202927725`
`8`		`1217566350`
`9`		`6358402050`
`10`		`29248649430`
`11`		`119653565850`
`12`		`438729741450`
`13`		`1451182990950`
`14`		`4353548972850`
`15`		`11899700525790`
`16`		`29749251314475`
`17`		`68248282427325`
`18`		`144079707346575`
`19`		`280576272201225`
`20`		`505037289962205`

[1,55,1485,26235,341055,3478761,28989675, 202927725,1217566350,6358402050,29248649430, 119653565850,438729741450,1451182990950, 4353548972850,11899700525790,29749251314475, 68248282427325,144079707346575,280576272201225, 505037289962205]

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Last modified April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)