a(-1)=1 by convention; for n >= 0, a(n) = number of irreducible Boolean functions of n variables.
A000616
a(-1)=1 by convention; for n >= 0, a(n) = number of irreducible Boolean functions of n variables.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =6a(4) =22a(5) =402a(6) =1228158
External references
- oeis: A000616