Triangle T(n,k), n >= 0, 0 <= k <= n, read by rows, where T(n,k) = (-1)^floor((k+1)/2) * A099927(n,k).
A383715
Triangle T(n,k), n >= 0, 0 <= k <= n, read by rows, where T(n,k) = (-1)^floor((k+1)/2) * A099927(n,k).
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =1a(4) =-2a(5) =-1a(6) =1a(7) =-5a(8) =-5a(9) =1a(10) =1a(11) =-12a(12) =-30a(13) =12a(14) =1a(15) =1a(16) =-29a(17) =-174a(18) =174a(19) =29a(20) =-1a(21) =1a(22) =-70a(23) =-1015a(24) =2436a(25) =1015a(26) =-70a(27) =-1a(28) =1a(29) =-169
External references
- oeis: A383715