A152576 - OEIS

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A152576

Number of equivalence classes of patterns of length n.

2

1, 1, 2, 5, 21, 114, 617

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

This sequence is copied from the referenced paper and has not been independently confirmed by the submitter.

LINKS

Table of n, a(n) for n=1..7.

V. Jelinek and T. Mansour, On pattern-avoiding partitions, Elect. J. Comb. 15(2008) R39, p. 50 of 52.

CROSSREFS

Sequence in context: A357919 A020129 A129582 * A328286 A078480 A212922

Adjacent sequences: A152573 A152574 A152575 * A152577 A152578 A152579

KEYWORD

nonn,more

AUTHOR

John W. Layman, Dec 08 2008

STATUS

approved