A133183 Numbers whose square starts with 7 identical digits.

745356, 942809, 1490712, 1825742, 3333334, 4714045, 4714046, 5773503, 6666667, 7453560, 8164966, 8819171, 9428090, 10540926, 10540927, 10540928, 10540929, 14907120, 14907121, 14907122, 18257418, 18257419, 18257420, 21081851

Offset

1,1

Links

Table of n, a(n) for n=1..24.

Example

Example: 745356^2 = 555555566736.

Mathematica

Select[Range[1000, 5000000], Length[Union[Take[IntegerDigits[ #^2], 7]]] == 1 & ]

Crossrefs

Sequence in context: A227905 A282407 A147707 * A119403 A184149 A339105

Adjacent sequences: A133180 A133181 A133182 * A133184 A133185 A133186

Keyword

nonn,base

Author

Jonathan Vos Post, Aug 30 2007

Extensions

a(8)-a(24) from Donovan Johnson, Sep 05 2008

Status

approved