A009551 - OEIS

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A009551 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`20`
`5`		`101`
`6`		`606`
`7`		`4241`
`8`		`33928`
`9`		`305353`
`10`		`3053530`
`11`		`33588829`
`12`		`403065948`
`13`		`5239857325`
`14`		`73358002550`
`15`		`1100370038249`
`16`		`17605920611984`
`17`		`299300650403729`
`18`		`5387411707267122`
`19`		`102360822438075317`
`20`		`2047216448761506340`

[0,1,2,5,20,101,606,4241,33928,305353,3053530, 33588829,403065948,5239857325,73358002550, 1100370038249,17605920611984,299300650403729, 5387411707267122,102360822438075317, 2047216448761506340]

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Last modified May 11 13:00 EDT 2024. Contains 372409 sequences. (Running on oeis4.)