A117227 Minimum number of unit segments required to construct n unit cubes.

12, 20, 28, 33, 41, 46, 51, 54, 62, 67, 72, 75, 83, 88, 93, 96, 101, 104, 112, 117, 122, 125, 130, 133, 138, 141, 144

Offset: 1

Author

Ron R. King, Apr 22 2006

Keywords

• easy
• nonn

Comments

This generalizes the 2-dimensional version which is A078633.

Examples

			a(2)=20 because 12 unit segments are required to construct each cube but 4 units are shared. I.e., a(2)=12+8=20.
		

Crossrefs

Cf. A078633.