The On-Line Encyclopedia of Integer Sequences (OEIS)

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A217804

Number of alternating permutations on 2n+1 letters that avoid a certain pattern of length 4 (see Lewis, 2012, Appendix, for precise definition).
(history; published version)

#10 by N. J. A. Sloane at Mon Oct 08 09:30:38 EDT 2018

LINKS

J. B. Lewis, <a href="httphttps://mathdspace.umnmit.edu/~jblewis/docshandle/PhDthesis.JBL1721.pdf1/73444">Pattern Avoidance for Alternating Permutations and Reading Words of Tableaux</a>, Ph. D. Dissertation, Department of Mathematics, MIT, 2012.

Discussion

Mon Oct 08

09:30

OEIS Server: https://oeis.org/edit/global/2769

#9 by N. J. A. Sloane at Tue Jan 23 06:54:01 EST 2018

STATUS

proposed

approved

#8 by Lars Blomberg at Tue Jan 23 05:39:48 EST 2018

STATUS

editing

proposed

#7 by Lars Blomberg at Tue Jan 23 05:38:57 EST 2018

DATA

1, 2, 16, 168, 2072, 28298, 414472, 6387436, 102316000

EXTENSIONS

a(6)-a(8) from Lars Blomberg, Jan 23 2018

STATUS

approved

editing

#6 by N. J. A. Sloane at Fri Oct 12 21:11:36 EDT 2012

STATUS

editing

approved

#5 by N. J. A. Sloane at Fri Oct 12 21:11:33 EDT 2012

CROSSREFS

Cf. A181197, A217799-A217831A217830.

STATUS

approved

editing

#4 by N. J. A. Sloane at Fri Oct 12 21:03:26 EDT 2012

STATUS

editing

approved

#3 by N. J. A. Sloane at Fri Oct 12 21:03:23 EDT 2012

NAME

q

Number of alternating permutations on 2n+1 letters that avoid a certain pattern of length 4 (see Lewis, 2012, Appendix, for precise definition).

LINKS

J. B. Lewis, <a href="http://math.umn.edu/~jblewis/docs/PhDthesis.JBL.pdf">Pattern Avoidance for Alternating Permutations and Reading Words of Tableaux</a>, Ph. D. Dissertation, Department of Mathematics, MIT, 2012.

CROSSREFS

Cf. A181197, A217799-A217831.

KEYWORD

nonn,changedmore,new

#2 by N. J. A. Sloane at Fri Oct 12 21:03:00 EDT 2012

NAME

allocated for N. J. A. Sloane

q

DATA

1, 2, 16, 168, 2072, 28298

OFFSET

0,2

KEYWORD

allocated

nonn

AUTHOR

N. J. A. Sloane, Oct 12 2012

STATUS

approved

editing

#1 by N. J. A. Sloane at Fri Oct 12 06:48:34 EDT 2012

NAME

allocated for N. J. A. Sloane

KEYWORD

allocated

STATUS

approved