1,3
P. De Geest, Palindromic Quasipronics of the form n(n+x)
Sequence in context: A036778 A065400 A091470 this_sequence A003359 A157543 A157984
Adjacent sequences: A028564 A028565 A028566 this_sequence A028568 A028569 A028570
nonn
Patrick De Geest (pdg(AT)worldofnumbers.com)
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