OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
196 is a term because 196 is a square and 196+691=887 is a prime.
MAPLE
select(t -> isprime(t+revdigs(t)), [seq(i^2, i=1..10000)]); # Robert Israel, Jun 19 2019
MATHEMATICA
Select[Range[1100]^2, PrimeQ[#+FromDigits[Reverse[IntegerDigits[#]]]]&] (* Harvey P. Dale, Feb 20 2011 *)
PROG
(PARI) isok(x) = issquare(x) && isprime(x+fromdigits(Vecrev(digits(x)))); \\ Michel Marcus, Jun 19 2019
(Magma) [k:k in [m^2:m in [1..1100]]| IsPrime(Seqint(Intseq(k, 10))+Seqint(Reverse(Intseq(k, 10))))]; // Marius A. Burtea, Jun 20 2019
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Shyam Sunder Gupta, Jul 18 2002
STATUS
approved