%N Primes with at least four digits such that sum of any three_neighbor_digits is prime; first and last digits are neighbors.
%C Because 3-digit terms coincide with additive 3-dimensional primes A046713, it is interesting to start with 4-digit primes. All of them may use only zero and odd digits, with the unique exclusion 2003 with one even digit. Primes such that sum of any two_neighbor_digits is prime A086244.
%H Alois P. Heinz, <a href="/A086259/b086259.txt">Table of n, a(n) for n = 1..10000</a>
%H Zak Seidov, <a href="http://groups.yahoo.com/group/primenumbers/message/12962">Prime sum of three neighbor digits</a>.
%H Zak Seidov, <a href="/A086259/a086259.txt">Prime sum of three neighbor digits</a>, message 12962 in primenumbers Yahoo group, Jul 14, 2003. [Cached copy]
%e 1973 is a term because 1+9+7=17, 9+7+3=19, 7+3+1=11 and 3+1+9=13 are all prime.
%Y Cf. A086244, A046713.
%A _Zak Seidov_, Jul 26 2003
%E More terms from _Alois P. Heinz_, May 10 2016