A090725 Primes whose representation in base 16 has no alphabetic characters.

2, 3, 5, 7, 17, 19, 23, 37, 41, 53, 67, 71, 73, 83, 89, 97, 101, 103, 113, 131, 137, 149, 151, 257, 263, 277, 281, 293, 307, 311, 313, 337, 353, 359, 373, 389, 401, 409, 521, 547, 563, 569, 577, 593, 599, 601, 613, 617, 631, 641, 643, 647, 659, 661, 769, 773

Offset

1,1

Comments

Subsequence of primes of A102489. - Michel Marcus, Mar 05 2016

Links

Zak Seidov, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[400]], Max[IntegerDigits[#, 16]] < 10 & ] (* Zak Seidov, Mar 04 2016 *)

Prog

(PARI) isok(n) = isprime(n) && (vecmax(digits(n, 16)) < 10); \\ Michel Marcus, Mar 05 2016

Crossrefs

Cf. A102489.

Sequence in context: A158015 A042995 A108222 * A276141 A214588 A089968

Adjacent sequences: A090722 A090723 A090724 * A090726 A090727 A090728

Keyword

base,nonn

Author

Cino Hilliard, Jan 18 2004

Extensions

Better definition from Omar E. Pol, Dec 24 2008

Status

approved