A079737 Number of positions that are exactly n moves from the starting position in the Hockey Puck puzzle.

1, 5, 20, 78, 297, 1130, 4225, 15472, 54143, 178274, 508805, 1062164, 1195536, 557174, 51373, 103

Offset

0,2

Comments

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 10! = 3628800. Here we only use moves of types a-e.

Links

Table of n, a(n) for n=0..15.

Jaap Scherphuis, Puzzle Pages

Crossrefs

Cf. A079735-A079738.

Sequence in context: A289786 A129869 A271887 * A028814 A346394 A079820

Adjacent sequences: A079734 A079735 A079736 * A079738 A079739 A079740

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Feb 20 2003

Status

approved