OFFSET
1,2
EXAMPLE
a(2) = 8, yielding the 2nd partial sum 1 + 8 = 9 = 3^2.
a(3) cannot be j^3 - 9 for j = 3, 4, or 5, because there would be no number k such that j^3 + 4k = is a 4th power; thus, a(3) = 207, yielding the 3rd partial sum 9 + 207 = 216 = 6^3 (and a(4) = 4^4 - 6^3 = 40).
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Jan 02 2004
EXTENSIONS
More terms from David Wasserman, Feb 23 2006
STATUS
approved