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