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A135848
Number of steps required for a certain algorithm for producing all permutations of n letters.
0
40, 154, 638, 3194, 19130, 133836, 1070550, 9634750, 96347210, 1059818936, 12717826742
OFFSET
2,1
LINKS
R. Sedgewick, Permutation generation methods, Computing Surveys, 9 (1977), 137-164.
CROSSREFS
Sequence in context: A100766 A189541 A201233 * A089548 A282090 A250987
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Mar 07 2008
STATUS
approved