a(n) = ((n+1)^(n-1) + (n-1)^(n-1))/2 for n>=1.
A195136
a(n) = ((n+1)^(n-1) + (n-1)^(n-1))/2 for n>=1.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =76a(4) =776a(5) =9966a(6) =154400a(7) =2803256a(8) =58388608a(9) =1372684090a(10) =35958682112
External references
- oeis: A195136