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A266739 Number of words on {1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,...,n,n,n,n} avoiding the pattern 123. 0
1, 1, 70, 3199, 173860, 10203181, 631326526, 40553993125, 2678871322640, 180830423671450, 12418980645870820, 864996624914197495, 60957211831578399100, 4338372535640598835279, 311386494956413595138930, 22513820432313175983170649, 1638226907374445245497453464 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Nathaniel Shar, Experimental methods in permutation patterns and bijective proof, PhD Dissertation, Mathematics Department, Rutgers University, May 2016.
CROSSREFS
Sequence in context: A349466 A075923 A089274 * A227273 A298463 A275295
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 06 2016
EXTENSIONS
More terms from Alois P. Heinz, Jan 14 2016
STATUS
approved

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)