a(n) = (k-1)st elementary symmetric function of C(n,0), C(n,1), ..., C(n,k), where k = floor( n/2 ).
A025141
a(n) = (k-1)st elementary symmetric function of C(n,0), C(n,1), ..., C(n,k), where k = floor( n/2 ).
Terms
- a(0) =1a(1) =1a(2) =11a(3) =16a(4) =551a(5) =1190a(6) =178024a(7) =564678a(8) =410606100a(9) =1876011225
External references
- oeis: A025141