1,1

Table of n, a(n) for n=1..44.

Erich Friedman, Problem of the month August 2003

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.

Sequence in context: A272767 A104810 A253023 * A159294 A332228 A066528

Adjacent sequences: A194657 A194658 A194659 * A194661 A194662 A194663

nonn,base

Kausthub Gudipati, Sep 01 2011

approved