An auxiliary bit-mask sequence for computing A066425. (The "dirty", unsymmetric one).
A068222
An auxiliary bit-mask sequence for computing A066425. (The "dirty", unsymmetric one).
Terms
- a(0) =1a(1) =3a(2) =27a(3) =6943a(4) =1819024347
External references
- oeis: A068222