A342286 - OEIS

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A342286

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

2, 0, 2, 8, 210, 64384, 4294577650, 18446744043646148328, 340282366920938463315800654962347229922, 115792089237316195423570985008687907850207443363352117868951295327319990568640

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OFFSET

0,1

COMMENTS

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

LINKS

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

Index entries for sequences related to Boolean functions

FORMULA

a(0)=2; for n>0, a(n) = A000371(n-1)-a(n-1).

EXAMPLE

a(2)=2: The two nondegenerate self-reflecting truth tables are: