Triangle of the coefficient [x^k] of the polynomial 2^n*s_n(x) generated by exp(x*(1 - sqrt(1+t^2))/t) = Sum_{n>=0} s_n(x)*t^k/k! in row n, column k.
A137378
Triangle of the coefficient [x^k] of the polynomial 2^n*s_n(x) generated by exp(x*(1 - sqrt(1+t^2))/t) = Sum_{n>=0} s_n(x)*t^k/k! in row n, column k.
Terms
- a(0) =1a(1) =0a(2) =-1a(3) =0a(4) =0a(5) =1a(6) =0a(7) =6a(8) =0a(9) =-1a(10) =0a(11) =0a(12) =-24a(13) =0a(14) =1a(15) =0a(16) =-240a(17) =0a(18) =60a(19) =0a(20) =-1a(21) =0a(22) =0a(23) =1800a(24) =0a(25) =-120a(26) =0a(27) =1a(28) =0a(29) =25200
External references
- oeis: A137378