A154761 Primes without decimal digits 1 or 9.

2, 3, 5, 7, 23, 37, 43, 47, 53, 67, 73, 83, 223, 227, 233, 257, 263, 277, 283, 307, 337, 347, 353, 367, 373, 383, 433, 443, 457, 463, 467, 487, 503, 523, 547, 557, 563, 577, 587, 607, 643, 647, 653, 673, 677, 683, 727, 733, 743, 757, 773, 787, 823, 827, 853

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Maple

no19 := proc(n) local d ; for d in convert(n, base, 10) do if d in {1, 9} then RETURN(false) ; fi; od: RETURN(true) ; end: for n from 1 to 400 do p := ithprime(n) ; if no19(p) then printf("%d, ", p) ; fi; od: # R. J. Mathar, Jan 18 2009

Crossrefs

Sequence in context: A267014 A113611 A038925 * A262098 A074491 A154385

Adjacent sequences: A154758 A154759 A154760 * A154762 A154763 A154764

Keyword

nonn,base

Author

Juri-Stepan Gerasimov, Jan 15 2009

Extensions

443 inserted by R. J. Mathar, Jan 18 2009

Status

approved