a(n) = Sum_{k=0..n} binomial(n,k)*2^k*(k+1)^(n-k).
A196794
a(n) = Sum_{k=0..n} binomial(n,k)*2^k*(k+1)^(n-k).
Terms
- a(0) =1a(1) =3a(2) =13a(3) =69a(4) =425a(5) =2953a(6) =22701a(7) =190445a(8) =1725777a(9) =16757649a(10) =173244629a(11) =1896821941a(12) =21897166137a(13) =265525063001
External references
- oeis: A196794