E.g.f.: A(x) = exp( Sum_{n>=1} 2^(n(n-1)) * x^n/n ).
A171776
E.g.f.: A(x) = exp( Sum_{n>=1} 2^(n(n-1)) * x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =141a(4) =25161a(5) =25295385a(6) =129002055885
External references
- oeis: A171776
A171776
E.g.f.: A(x) = exp( Sum_{n>=1} 2^(n(n-1)) * x^n/n ).