OFFSET
0,1
COMMENTS
Left diagonal (k=0) has only 2s. Two functions (contradiction and tautology) are always alone in their respective sec, regardless of arity.
Second diagonal (k=1) is 2^n-1 (A000225). These are the n-ary linear Boolean functions. Each sec contains a row of a binary Walsh matrix and its complement.
Right diagonal (k=n) is A051502, the numbers of small equivalence classes of n-ary functions, that contain the highest possible number of 2^n functions.
LINKS
EXAMPLE
CROSSREFS
KEYWORD
AUTHOR
Tilman Piesk, Jul 22 2013
STATUS
approved