A064014 Squares with an even number of digits, the respective halves of which are consecutive integers.

8281, 183184, 328329, 528529, 715716, 60996100, 82428241, 98029801, 1322413225, 4049540496, 106755106756, 453288453289, 538277538276, 998002998001, 20661152066116, 29752082975209, 2214532822145329, 2802768328027684, 7783702677837025, 9998000299980001

Offset

1,1

References

David Wells, The Penguin Dictionary of Curious and Interesting Numbers (Rev. ed. 1999), p. 162.

Links

Table of n, a(n) for n=1..20.

Example

82428241 is included because 9079^2 = 82428241 and 8242 and 8241 are consecutive integers.

Crossrefs

Sequence in context: A157731 A252581 A271748 * A203881 A145527 A054215

Adjacent sequences: A064011 A064012 A064013 * A064015 A064016 A064017

Keyword

nonn,base

Author

Harvey P. Dale, Sep 17 2001

Extensions

More terms from Charles R Greathouse IV, Nov 18 2010

Status

approved