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Search: id:A028564
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A028564 Numbers n such that n(n+7) is a palindrome. +0
1
0, 1, 4, 19, 26, 219, 664, 902, 2109, 2972, 2982, 9002, 21009, 29696, 90002, 210009, 223114, 292967, 669024, 900002, 942997, 2100009, 2109664, 2219779, 8972876, 9000002, 21000009, 21037924, 21117304, 21152824, 21155344 (list; graph; listen)
OFFSET

1,3
LINKS

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

CROSSREFS

Sequence in context: A072178 A116980 A022135 this_sequence A003338 A047715 A031291

Adjacent sequences: A028561 A028562 A028563 this_sequence A028565 A028566 A028567

KEYWORD

nonn

AUTHOR

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

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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