A007686 - OEIS

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A007686 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`13`
`3`		`31`
`4`		`73`
`5`		`149`
`6`		`233`
`7`		`367`
`8`		`521`
`9`		`733`
`10`		`991`
`11`		`1249`
`12`		`1579`
`13`		`1949`
`14`		`2341`
`15`		`2791`
`16`		`3343`
`17`		`3881`
`18`		`4481`
`19`		`5147`
`20`		`5849`
`21`		`6619`
`22`		`7499`
`23`		`8387`
`24`		`9341`
`25`		`10321`
`26`		`11411`
`27`		`12517`
`28`		`13709`
`29`		`15013`
`30`		`16363`
`31`		`17881`
`32`		`19381`
`33`		`20873`
`34`		`22369`
`35`		`24007`
`36`		`25763`
`37`		`27611`
`38`		`29399`
`39`		`31357`

[3,13,31,73,149,233,367,521,733,991,1249,1579, 1949,2341,2791,3343,3881,4481,5147,5849,6619,7499, 8387,9341,10321,11411,12517,13709,15013,16363, 17881,19381,20873,22369,24007,25763,27611,29399, 31357]

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Last modified August 29 13:55 EDT 2024. Contains 375517 sequences. (Running on oeis4.)