A053580 Primes whose digits contain circles.

89, 809, 6089, 6689, 6869, 6899, 8009, 8069, 8089, 8609, 8669, 8689, 8699, 8969, 8999, 9689, 60089, 60689, 60869, 60889, 60899, 66089, 66809, 66889, 68099, 68669, 68699, 68899, 68909, 69809, 69899, 80669, 80809, 80909, 80989, 86069, 86689

Offset

1,1

Comments

Only the digits 6, 8, 9, and 0 are permitted. The terms must, of course, end with the digit 9. - Harvey P. Dale, Jan 27 2015

Links

Harvey P. Dale, Table of n, a(n) for n = 1..10000

Mathematica

Select[10#+9&/@Sort[FromDigits/@Tuples[{6, 8, 9, 0}, 4]], PrimeQ] (* Harvey P. Dale, Jan 27 2015 *)

Crossrefs

Cf. A000040, A052090.

Sequence in context: A063654 A308801 A069764 * A239719 A290314 A103548

Adjacent sequences: A053577 A053578 A053579 * A053581 A053582 A053583

Keyword

base,nonn,less

Author

G. L. Honaker, Jr., Jan 18 2000

Extensions

Extended by Ray Chandler, Feb 08 2009

Status

approved