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A028562 Palindromes of form n(n+6). 1
0, 7, 55, 616, 19591, 76167, 515515, 749947, 7474747, 72999927, 236799997632, 769437734967, 1900289820091, 2998954598992, 5170703070715, 5934592954395, 29175111157192, 51175166157115, 57154688645175 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

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

CROSSREFS

Sequence in context: A083836 A159313 A054910 * A209668 A180829 A227544

Adjacent sequences:  A028559 A028560 A028561 * A028563 A028564 A028565

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified January 22 22:38 EST 2018. Contains 298093 sequences.