Triangle read by rows: T(n,k) is the coefficient of x^k in the polynomial P(n) = n*(x + 1)*P(n - 1) - (n - 2)^2*x*P(n - 2).
A299018
Triangle read by rows: T(n,k) is the coefficient of x^k in the polynomial P(n) = n*(x + 1)*P(n - 1) - (n - 2)^2*x*P(n - 2).
Terms
- a(0) =1a(1) =2a(2) =2a(3) =6a(4) =11a(5) =6a(6) =24a(7) =60a(8) =60a(9) =24a(10) =120a(11) =366a(12) =501a(13) =366a(14) =120a(15) =720a(16) =2532a(17) =4242a(18) =4242a(19) =2532a(20) =720a(21) =5040a(22) =19764a(23) =38268a(24) =46863a(25) =38268a(26) =19764a(27) =5040a(28) =40320a(29) =172512
External references
- oeis: A299018