A000306 - OEIS

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A000306 as a simple table

`n`		`a(n)`
`9`		`1`
`10`		`4`
`11`		`19`
`12`		`66`
`13`		`219`
`14`		`645`
`15`		`1813`
`16`		`4802`
`17`		`12265`
`18`		`30198`
`19`		`72396`
`20`		`169231`
`21`		`387707`
`22`		`871989`
`23`		`1930868`
`24`		`4215615`
`25`		`9091410`
`26`		`19389327`
`27`		`40944999`
`28`		`85691893`
`29`		`177898521`
`30`		`366614456`
`31`		`750494796`
`32`		`1526979694`
`33`		`3089556090`
`34`		`6219191608`
`35`		`12460307373`
`36`		`24856533408`
`37`		`49387348955`
`38`		`97765283686`
`39`		`192870793594`
`40`		`379287172272`

[1,4,19,66,219,645,1813,4802,12265,30198,72396, 169231,387707,871989,1930868,4215615,9091410, 19389327,40944999,85691893,177898521,366614456, 750494796,1526979694,3089556090,6219191608, 12460307373,24856533408,49387348955,97765283686, 192870793594,379287172272]

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Last modified May 6 12:40 EDT 2024. Contains 372293 sequences. (Running on oeis4.)