Number of unlabeled strongly connected n-state 2-input automata.

A027835

Number of unlabeled strongly connected n-state 2-input automata.

Terms

    a(0) =1a(1) =6a(2) =52a(3) =892a(4) =21291a(5) =658885a(6) =24617866a(7) =1077142765a(8) =53918557215

External references