This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A086259 #14 Nov 15 2019 15:54:16 %S A086259 1151,1193,1319,1373,1511,1733,1913,1931,1973,2003,3119,3137,3191, %T A086259 3371,3559,3719,3779,3797,3911,3917,5953,7193,7331,7793,7937,9137, %U A086259 9173,9311,9371,9377,10111,11113,11119,11131,11311,11551,13313,13913,15511,19139,19319 %N A086259 Primes with at least four digits such that sum of any three_neighbor_digits is prime; first and last digits are neighbors. %C A086259 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 A086259 Alois P. Heinz, <a href="/A086259/b086259.txt">Table of n, a(n) for n = 1..10000</a> %H A086259 Zak Seidov, <a href="http://groups.yahoo.com/group/primenumbers/message/12962">Prime sum of three neighbor digits</a>. %H A086259 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 A086259 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 A086259 Cf. A086244, A046713. %K A086259 nonn,base %O A086259 1,1 %A A086259 _Zak Seidov_, Jul 26 2003 %E A086259 More terms from _Alois P. Heinz_, May 10 2016