1,2
C. Rivera, Source 3
Eric Weisstein's World of Mathematics, Palindromic Prime
P. De Geest, Palindromic Sums of Squares of Consecutive Integers
Cf. A050239.
Sequence in context: A166643 A038302 A188001 * A193995 A070607 A191891
Adjacent sequences: A050233 A050234 A050235 * A050237 A050238 A050239
nonn,nice,bref,hard,base
Eric Weisstein (eric(AT)weisstein.com)
No others < 20000000000 - Patrick De Geest (pdg(AT)worldofnumbers.com), 8/99.