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A085564
Primes whose sum of nonprime digits is also prime.
2
11, 41, 61, 89, 101, 113, 131, 151, 163, 167, 191, 199, 211, 241, 311, 349, 389, 401, 409, 421, 431, 439, 449, 461, 479, 541, 601, 613, 617, 631, 641, 661, 761, 809, 829, 839, 859, 881, 911, 919, 947, 983, 991, 1013, 1019, 1021, 1031, 1051, 1063, 1091
OFFSET
1,1
LINKS
EXAMPLE
a(100)=1993 because it is prime and 1+9+9=19, a prime.
MATHEMATICA
snpdQ[n_]:=PrimeQ[Total[Select[IntegerDigits[n], !PrimeQ[#]&]]]; Select[ Prime[Range[200]], snpdQ] (* Harvey P. Dale, Mar 21 2020 *)
CROSSREFS
Sequence in context: A040167 A040170 A333085 * A158205 A179446 A260269
KEYWORD
base,easy,nonn
AUTHOR
Jason Earls, Jul 05 2003
STATUS
approved