A230554 - OEIS

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A230554 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`9`
`5`		`21`
`6`		`51`
`7`		`126`
`8`		`321`
`9`		`820`
`10`		`2160`
`11`		`5654`
`12`		`15272`
`13`		`40758`
`14`		`112280`
`15`		`304471`
`16`		`852164`
`17`		`2341980`
`18`		`6640755`
`19`		`18460066`
`20`		`52915999`

[1,1,2,4,9,21,51,126,321,820,2160,5654,15272, 40758,112280,304471,852164,2341980,6640755, 18460066,52915999]

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Last modified May 14 07:57 EDT 2024. Contains 372530 sequences. (Running on oeis4.)