A018039 - OEIS

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A018039 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`7`
`3`		`22`
`4`		`61`
`5`		`172`
`6`		`484`
`7`		`1356`
`8`		`3800`
`9`		`10648`
`10`		`29836`
`11`		`83601`
`12`		`234256`
`13`		`656394`
`14`		`1839243`
`15`		`5153632`
`16`		`14440679`
`17`		`40463352`
`18`		`113379904`
`19`		`317694950`
`20`		`890193745`
`21`		`2494357888`
`22`		`6989288906`
`23`		`19584262410`
`24`		`54875873536`
`25`		`153764355951`
`26`		`430853773030`
`27`		`1207269217792`
`28`		`3382815830942`

[1,2,7,22,61,172,484,1356,3800,10648,29836,83601, 234256,656394,1839243,5153632,14440679,40463352, 113379904,317694950,890193745,2494357888, 6989288906,19584262410,54875873536,153764355951, 430853773030,1207269217792,3382815830942]

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Last modified May 7 09:00 EDT 2024. Contains 372300 sequences. (Running on oeis4.)