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A117227 Minimum number of unit segments required to construct n unit cubes. +0
3
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 (list; graph; listen)
OFFSET

1,1

COMMENT

This generalizes the 2-dimensional version which is A078633.

EXAMPLE

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

CROSSREFS

Cf. A078633.

Adjacent sequences: A117224 A117225 A117226 this_sequence A117228 A117229 A117230

Sequence in context: A095035 A108027 A090767 this_sequence A110187 A096156 A107277

KEYWORD

easy,nonn

AUTHOR

Ronald R. King (rrking(AT)alaskalife.net), Apr 22 2006

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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