A302938 - OEIS

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A302938 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`4`
`4`		`7`
`5`		`44`
`6`		`47`
`7`		`74`
`8`		`77`
`9`		`444`
`10`		`447`
`11`		`474`
`12`		`477`
`13`		`744`
`14`		`747`
`15`		`774`
`16`		`777`
`17`		`4444`
`18`		`4447`
`19`		`4474`
`20`		`4477`
`21`		`4744`
`22`		`4747`
`23`		`4774`
`24`		`4777`
`25`		`7444`
`26`		`7447`
`27`		`7474`
`28`		`7477`
`29`		`7744`
`30`		`7747`
`31`		`7774`
`32`		`7777`
`33`		`44444`
`34`		`44447`
`35`		`44474`
`36`		`44477`
`37`		`44744`
`38`		`44747`
`39`		`44774`
`40`		`44777`
`41`		`47444`
`42`		`47447`
`43`		`47474`
`44`		`47477`
`45`		`47744`
`46`		`47747`
`47`		`47774`
`48`		`47777`
`49`		`74444`
`50`		`74447`

[1,2,4,7,44,47,74,77,444,447,474,477,744,747,774, 777,4444,4447,4474,4477,4744,4747,4774,4777,7444, 7447,7474,7477,7744,7747,7774,7777,44444,44447, 44474,44477,44744,44747,44774,44777,47444,47447, 47474,47477,47744,47747,47774,47777,74444,74447]

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Last modified August 25 22:58 EDT 2024. Contains 375454 sequences. (Running on oeis4.)