A163390 Numbers n such that n^3 can be represented as sum of (at least two) consecutive squares.

47, 65, 921, 2161, 2820, 12284, 13156, 16761, 18340, 43500, 61721, 63765, 64605, 66317, 99359, 116180, 122009, 146821, 159371, 260165, 269588, 314919, 403130, 524095, 690381, 813340, 827209, 869241, 985864, 1203015, 1348761, 1942084, 3145712, 3632486, 3867745

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..45

Formula

a(n)= (A136312(n))^(1/3). [R. J. Mathar, Aug 02 2009]

Example

a(1) = 47 as 47^3 = 103823 = 22^2 + 23^2 + 24^2 + ... + 68^2.

Crossrefs

Sequence in context: A043958 A099591 A046048 * A332078 A023303 A348421

Adjacent sequences: A163387 A163388 A163389 * A163391 A163392 A163393

Keyword

nonn

Author

Gaurav Kumar, Jul 26 2009

Extensions

a(6)-a(14) from Donovan Johnson, Feb 02 2011

a(15)-a(16) from Donovan Johnson, Jun 12 2011

a(17) from Donovan Johnson, Aug 02 2013

a(18)-a(35) from Chai Wah Wu, Jan 16 2016

Status

approved