1,1

C. Rivera, Source 3

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

P. De Geest, Palindromic Sums of Squares of Consecutive Integers

Cf. A050236.

Sequence in context: A162136 A053363 A027572 this_sequence A094081 A096543 A138733

Adjacent sequences: A050236 A050237 A050238 this_sequence A050240 A050241 A050242

nonn,nice,hard

Eric Weisstein (eric(AT)weisstein.com)

No others < 10^20 - Patrick De Geest (pdg(AT)worldofnumbers.com), 8/99.