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A098210 a(n)=-1+A093137[n]^2. 3
0, 15, 1155, 111555, 11115555, 1111155555, 111111555555, 11111115555555, 1111111155555555, 111111111555555555, 11111111115555555555, 1111111111155555555555, 111111111111555555555555 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

EXAMPLE

Like other -1+square of near-repdigits give special digit

patterns:(33333334^2)-1=11111115555555,

CROSSREFS

Cf. A093137.

Sequence in context: A131313 A129764 A027552 * A090213 A027492 A001728

Adjacent sequences:  A098207 A098208 A098209 * A098211 A098212 A098213

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Oct 20 2004

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Last modified February 17 02:08 EST 2012. Contains 205978 sequences.