1,2
P. De Geest, Palindromic Quasipronics of the form n(n+x)
Sequence in context: A203278 A013704 A025495 * A009074 A066258 A123771
Adjacent sequences: A028567 A028568 A028569 * A028571 A028572 A028573
nonn,base,easy
Patrick De Geest (pdg(AT)worldofnumbers.com)