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A028337 Palindromes of form n(n+1). 2
2, 6, 272, 6006, 289982, 2629262, 6039306, 27999972, 28233282, 2704884072, 20278187202, 20591819502, 2592587852952, 2936231326392, 21809166190812, 27237788773272, 229145919541922, 233552101255332, 250087292780052 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

P. De Geest, Palindromic pronic numbers of the form n(n+1)

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

EXAMPLE

272 belongs to the sequence as 272 = 16*17 is a palindrome.

CROSSREFS

Cf. A028336.

Sequence in context: A199125 A007190 A164829 * A135014 A092024 A069261

Adjacent sequences:  A028334 A028335 A028336 * A028338 A028339 A028340

KEYWORD

nonn,base

AUTHOR

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

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Last modified February 12 21:29 EST 2012. Contains 205433 sequences.