A029977 Primes that are palindromic in base 9.
2, 3, 5, 7, 109, 127, 173, 191, 227, 337, 373, 419, 601, 619, 683, 701, 719, 6967, 7129, 7867, 8443, 9181, 9343, 10333, 10657, 11071, 11971, 12547, 13033, 13367, 13691, 14843, 15581, 16319, 16481, 17957, 18119, 18371, 19433, 27067, 27967
Offset: 1
Links
- John Cerkan, Table of n, a(n) for n = 1..10000
- P. De Geest, World!Of Palindromic Primes
Programs
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Mathematica
f[n_]:=FromDigits[RealDigits[n,9][[1]]]==FromDigits[Reverse[RealDigits[n,9][[1]]]]; lst={}; Do[p=Prime[n]; If[f[p],AppendTo[lst,p]],{n,8!}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 10 2009 *)