login
A163390
Numbers n such that n^3 can be represented as sum of (at least two) consecutive squares.
1
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
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
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