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A028561 Numbers n such that n(n+6) is a palindrome. 0
0, 1, 5, 22, 137, 273, 715, 863, 2731, 8541, 486618, 877173, 1378507, 1731746, 2273915, 2436099, 5401396, 7153679, 7560069, 14529486, 23887419, 23975475 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

P. De Geest, Palindromic Quasipronics of the form n(n+x)

CROSSREFS

Sequence in context: A203265 A033462 A111154 * A009638 A121942 A006294

Adjacent sequences:  A028558 A028559 A028560 * A028562 A028563 A028564

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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Last modified February 13 06:53 EST 2012. Contains 205451 sequences.