a_n = - sum_{i=1..n-1} C(i+1, n-i) (-1)^(n-i) a_i.
A028380
a_n = - sum_{i=1..n-1} C(i+1, n-i) (-1)^(n-i) a_i.
Terms
- a(0) =0a(1) =28a(2) =148a(3) =621a(4) =2420a(5) =9152a(6) =34164a(7) =126854a(8) =470288a(9) =1744200a(10) =6478088a(11) =24107105a(12) =89908380
External references
- oeis: A028380