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A089256 Numbers n such that decimal expansion of n^2 has the form D 0 (D+1) for some number D. 0
155, 274, 2191, 104579630, 142857142, 189126664, 195488721, 241758243, 280035755 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

No more terms < sqrt(5)*10^9. - David Wasserman (wasserma(AT)spawar.navy.mil), Aug 31 2005

EXAMPLE

2191^2=4800481 = 480 0 481

CROSSREFS

Sequence in context: A200709 A159258 A122475 * A112136 A119609 A063340

Adjacent sequences:  A089253 A089254 A089255 * A089257 A089258 A089259

KEYWORD

nonn,base

AUTHOR

Yalcin Aktar (aktaryalcin(AT)msn.com), Dec 12 2003

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Aug 31 2005

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Last modified February 16 04:18 EST 2012. Contains 205860 sequences.