Order of modular group of degree 3^(n-1) + 1.

A130213

Order of modular group of degree 3^(n-1) + 1.

Terms

    a(0) =0a(1) =12a(2) =360a(3) =9828a(4) =265680a(5) =7174332a(6) =193709880a(7) =5230175508a(8) =141214764960

External references