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 A090725 Primes whose representation in base 16 has no alphabetic characters. 2
 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 (list; graph; refs; listen; history; text; internal format)
 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

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Last modified June 16 21:55 EDT 2021. Contains 345080 sequences. (Running on oeis4.)