0,2
This is the number of positions that can be reached in n moves from the start, but which cannot be reached in fewer than n moves.
A puzzle in the Rubik cube family. The total number of distinct positions is 4079.
Table of n, a(n) for n=0..12.
Jaap Scherphuis, Puzzle Pages
Cf. A010928, A080560-A080564.
Sequence in context: A320483 A260417 A117313 * A221520 A214311 A005147
Adjacent sequences: A080560 A080561 A080562 * A080564 A080565 A080566
nonn,fini,full
N. J. A. Sloane, Feb 21 2003
approved
