OFFSET
1,1
FORMULA
a(n^3) = 3*(n^2)*(n+1) = A270205(n+1). - Mohammed Yaseen, Aug 22 2021
EXAMPLE
a(2)=11 because 6 unit faces are required to construct each cube but 1 face is shared. I.e., a(2)=6+5=11.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Ron R. King, May 18 2006
EXTENSIONS
Missing term a(56)=214 inserted by Mohammed Yaseen, Aug 22 2021
STATUS
approved