0,1
PN-equivalence allows complementing the individual variables.
D. E. Knuth, The Art of Computer Programming, Vol. 4, Section 7.1.1 (in preparation).
Table of n, a(n) for n=0..6.
For n>1, a(n) = 2*A000616(n) - 1 because the only self-dual examples occur when the function is a projection onto a single variable.
See A102449 for definition and further references. Cf. A109460, A000616.
Sequence in context: A276532 A003686 A086506 * A000905 A065296 A114895
Adjacent sequences: A109459 A109460 A109461 * A109463 A109464 A109465
nonn
Don Knuth, Aug 24 2005
approved