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A079857 Number of positions that are exactly n moves from the starting position in the Rashkey Type 2 puzzle. 1

%I

%S 1,3,9,25,71,213,637,1871,5439,15591,43853,119603,306107,694105,

%T 1253721,1481631,862893,169269,6192,16

%N Number of positions that are exactly n moves from the starting position in the Rashkey Type 2 puzzle.

%C 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.

%C A puzzle in the Rubik cube family. The total number of distinct positions is 4961250. Here we consider a move to be a turn of a disc by any amount.

%H Jaap Scherphuis, <a href="http://www.jaapsch.net/puzzles/">Puzzle Pages</a>

%Y Cf. A079864.

%K nonn,fini,full

%O 0,2

%A _N. J. A. Sloane_, Feb 21 2003

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Last modified October 23 00:52 EDT 2014. Contains 248411 sequences.