Central coefficients in Product_{k=0..n-1} (1 + k*x + x^2).
A201950
Central coefficients in Product_{k=0..n-1} (1 + k*x + x^2).
Terms
- a(0) =1a(1) =0a(2) =2a(3) =6a(4) =28a(5) =160a(6) =1078a(7) =8358a(8) =73260a(9) =716112a(10) =7721844a(11) =91039740a(12) =1164932470a(13) =16077368580a(14) =238037983558
External references
- oeis: A201950