%I #9 Sep 14 2014 00:20:48
%S 41,6449,196169,576529,11561089,14441369,27042601,38443721,51845041,
%T 60845929,67246561,84648281,1081610609,2073620449,2190421609,
%U 2822427889,3240032041,4000039601,4326442849,5017649729,5290052441,6250062001
%N Primes which are the reverse concatenation of two consecutive square numbers.
%e The first term is 41 which is a prime and is the reverse concatenation of 1 and 4 which are two consecutive square numbers.
%o (Python)
%o from sympy import isprime
%o A104301_list = []
%o for n in range(1,2000):
%o ....x = int(str((n+1)**2)+str(n**2))
%o ....if isprime(x):
%o ........A104301_list.append(x) # _Chai Wah Wu_, Sep 13 2014
%Y These are the primes in A246972.
%Y Cf. A104242.
%K base,nonn
%O 1,1
%A _Shyam Sunder Gupta_, Apr 17 2005