Triangle of nonzero coefficients of Hermite polynomials H_n(x) in increasing powers of x.

Terms

a(0) =1a(1) =2a(2) =-2a(3) =4a(4) =-12a(5) =8a(6) =12a(7) =-48a(8) =16a(9) =120a(10) =-160a(11) =32a(12) =-120a(13) =720a(14) =-480a(15) =64a(16) =-1680a(17) =3360a(18) =-1344a(19) =128a(20) =1680a(21) =-13440a(22) =13440a(23) =-3584a(24) =256a(25) =30240a(26) =-80640a(27) =48384a(28) =-9216a(29) =512