A030280 - OEIS

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A030280 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`6`
`3`		`30`
`4`		`137`
`5`		`588`
`6`		`2415`
`7`		`9600`
`8`		`37209`
`9`		`141336`
`10`		`528049`
`11`		`1945800`
`12`		`7086555`
`13`		`25550547`
`14`		`91319973`
`15`		`323890062`
`16`		`1140985116`
`17`		`3995155506`
`18`		`13913280006`
`19`		`48216776266`
`20`		`166355744244`
`21`		`571636515369`
`22`		`1957015021744`
`23`		`6677155551312`

[1,6,30,137,588,2415,9600,37209,141336,528049, 1945800,7086555,25550547,91319973,323890062, 1140985116,3995155506,13913280006,48216776266, 166355744244,571636515369,1957015021744, 6677155551312]

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Last modified April 23 06:45 EDT 2024. Contains 371906 sequences. (Running on oeis4.)