A048420 - OEIS

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A048420 as a simple table

`n`		`a(n)`
`1`		`2`
`2`		`3`
`3`		`5`
`4`		`7`
`5`		`19`
`6`		`191`
`7`		`809`
`8`		`919`
`9`		`9091`
`10`		`80809`
`11`		`80909`
`12`		`91909`
`13`		`190909`
`14`		`909091`
`15`		`1908091`
`16`		`1909091`
`17`		`9090919`
`18`		`9091909`
`19`		`19090909`
`20`		`80919191`
`21`		`190909091`
`22`		`191908091`
`23`		`809080919`
`24`		`809191919`
`25`		`908080909`
`26`		`919080919`
`27`		`919191919`
`28`		`1909080809`

[2,3,5,7,19,191,809,919,9091,80809,80909,91909, 190909,909091,1908091,1909091,9090919,9091909, 19090909,80919191,190909091,191908091,809080919, 809191919,908080909,919080919,919191919, 1909080809]

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Last modified April 19 16:38 EDT 2024. Contains 371794 sequences. (Running on oeis4.)