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

1,1

Comments

This generalizes the 2-dimensional version which is A078633.

Links

Table of n, a(n) for n=1..27.

Example

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.

Sequence in context: A095035 A108027 A090767 * A360767 A366825 A110187

Adjacent sequences: A117224 A117225 A117226 * A117228 A117229 A117230

Keyword

easy,nonn

Author

Ron R. King, Apr 22 2006

Status

approved