The On-Line Encyclopedia of Integer Sequences (OEIS)

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A051486

Triangle T(n,k) = number of symmetric Boolean functions of n variables and rank from 0 to 2^n.
(history; published version)

#8 by R. J. Mathar at Thu Jun 13 14:31:35 EDT 2013

STATUS

editing

approved

#7 by R. J. Mathar at Thu Jun 13 14:31:27 EDT 2013

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs)

Vladeta Jovovic

STATUS

approved

editing

#6 by Russ Cox at Sun Jul 10 18:19:59 EDT 2011

LINKS

<a href="/Sindx_index/Bo.html#Boolean">Index entries for sequences related to Boolean functions</a>

Discussion

Sun Jul 10

18:19

OEIS Server: https://oeis.org/edit/global/24

#5 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

<a href="/Sindx_Bo.html#Boolean">Index entries for sequences related to Boolean functions</a>

KEYWORD

nonn,tabf,nice,new

#4 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

KEYWORD

nonn,tabf,nice,new

AUTHOR

Vladeta Jovovic (vladeta(AT)Euneteunet.yurs)

#3 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

LINKS

<a href="http://www.research.att.com/~njas/sequences/Sindx_Bo.html#Boolean">Index entries for sequences related to Boolean functions</a>

KEYWORD

nonn,tabf,nice,new

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

LINKS

<a href="http://www.research.att.com/~njas/sequences/Sindx_Bo.html#Boolean">Index entries for sequences related to Boolean functions</a>

KEYWORD

nonn,tabf,nice,new

AUTHOR

Vladeta Jovovic (vladeta@(AT)Eunet.yu)

#1 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999

NAME

Triangle T(n,k) = number of symmetric Boolean functions of n variables and rank from 0 to 2^n.

DATA

1, 1, 1, 2, 1, 1, 2, 2, 2, 1, 1, 2, 1, 2, 4, 2, 1, 2, 1, 1, 2, 1, 0, 2, 4, 3, 2, 2, 2, 3, 4, 2, 0, 1, 2, 1, 1, 2, 1, 0, 0, 2, 4, 2, 0, 0, 3, 6, 3, 0, 0, 4, 8, 4, 0, 0, 3, 6, 3, 0, 0, 2, 4, 2, 0, 0, 1, 2, 1, 1, 2, 1, 0, 0, 0, 2, 4, 2, 0, 0, 0, 1, 2, 1, 2, 4, 2, 0, 0, 1, 6, 9, 4, 0, 0, 2, 6, 6, 2

OFFSET

0,4

EXAMPLE

[1, 1], [1, 2, 1], [1, 2, 2, 2, 1], [1, 2, 1, 2, 4, 2, 1, 2, 1], ...

CROSSREFS

Row sums give A011782.

KEYWORD

nonn,tabf,nice

AUTHOR

Vladeta Jovovic (vladeta@Eunet.yu)

STATUS

approved