OFFSET
1,1
COMMENTS
FORMULA
Formula : A087999(a(n)) = 1.
EXAMPLE
97 is prime and is not a palindrome, hence 97 belongs to this sequence.
MATHEMATICA
Select[Range[350], PrimeQ[#] && !PalindromeQ[#] &] (* Amiram Eldar, Apr 23 2020 *)
PROG
(PARI) isok(p) = if (isprime(p), my(d=digits(p)); d != Vecrev(d)); \\ Michel Marcus, Apr 23 2020
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Bernard Schott, Apr 23 2020
STATUS
approved