A015531 - OEIS

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A015531 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`4`
`3`		`21`
`4`		`104`
`5`		`521`
`6`		`2604`
`7`		`13021`
`8`		`65104`
`9`		`325521`
`10`		`1627604`
`11`		`8138021`
`12`		`40690104`
`13`		`203450521`
`14`		`1017252604`
`15`		`5086263021`
`16`		`25431315104`
`17`		`127156575521`
`18`		`635782877604`
`19`		`3178914388021`
`20`		`15894571940104`
`21`		`79472859700521`

[0,1,4,21,104,521,2604,13021,65104,325521,1627604, 8138021,40690104,203450521,1017252604,5086263021, 25431315104,127156575521,635782877604, 3178914388021,15894571940104,79472859700521]

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Last modified September 19 12:32 EDT 2024. Contains 376012 sequences. (Running on oeis4.)