A015938 - OEIS

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A015938 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`6`
`3`		`9`
`4`		`20`
`5`		`56`
`6`		`66`
`7`		`133`
`8`		`260`
`9`		`513`
`10`		`1030`
`11`		`2091`
`12`		`4128`
`13`		`8593`
`14`		`16394`
`15`		`33195`
`16`		`65584`
`17`		`131345`
`18`		`262176`
`19`		`524989`
`20`		`1048660`
`21`		`2097291`
`22`		`4195642`
`23`		`8388997`
`24`		`16777272`
`25`		`33554525`
`26`		`67109198`
`27`		`134217729`
`28`		`268435468`
`29`		`536875753`
`30`		`1073741910`

[3,6,9,20,56,66,133,260,513,1030,2091,4128,8593, 16394,33195,65584,131345,262176,524989,1048660, 2097291,4195642,8388997,16777272,33554525, 67109198,134217729,268435468,536875753,1073741910]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)