OFFSET
1,1
LINKS
Erich Friedman, Problem of the month August 2003
EXAMPLE
Let us consider parentheses as cubing operator.
153 = 1^3 + 5^3 + 3^3.
224 = 2^3 + (2 + 4)^3.
226 = 2 + 2^3 + 6^3.
243 = (2 + 4)^3 + 3^3.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Kausthub Gudipati, Sep 01 2011
STATUS
approved