A342287 a(n) = number of n-variable nondegenerate self-dual truth-tables.

0, 2, 0, 10, 208, 64386, 4294577648, 18446744043646148330, 340282366920938463315800654962347229920, 115792089237316195423570985008687907850207443363352117868951295327319990568642

Offset

0,2

Comments

A truth table is self-dual if the last column (the values of the function) is unchanged if it is reversed and negated.

Links

Table of n, a(n) for n=0..9.

Index entries for sequences related to Boolean functions

Formula

a(0)=0; for n>0, a(n) = A000371(n-1)-a(n-1).

Crossrefs

Cf. A000371, A342286.

Sequence in context: A368956 A035237 A189423 * A230696 A138542 A057862

Adjacent sequences: A342284 A342285 A342286 * A342288 A342289 A342290

Keyword

nonn

Author

N. J. A. Sloane, Mar 25 2021, based on an email from Nollaig MacKenzie, Mar 23 2021

Status

approved