  The amplitudes of refined Chern-Simons (CS) theory, colored by antisymmetric
(or symmetric) representations, conjecturally generate the Lambda^r- (or S^r-)
colored triply graded homology of (n,m) torus knots. This paper is devoted to
the generalization of Rosso-Jones formula to refined amplitudes, that involves
non-trivial Gamma-factors -- expansion coefficients in the Macdonald basis. We
derive from refined CS theory a linear recursion w.r.t. transformations (n,m)
-> (n, n+m) and (n,m) -> (m,-n) that fully determines these factors. Applying
this recursion to (n,nk+1) torus knots colored by antisymmetric representations
[1^r] we prove that their amplitudes are rectangular [n^r] Hall-Littlewood
polynomials under k units of framing (a.k.a. the Bergeron-Garsia nabla)
operator. For symmetric representations [r], we find the dual -- q-Whittaker --
polynomials. These results confirm and give a colored extension of the
observation of arXiv:1201.3339 that triply graded homology of many torus knots
has a strikingly simple description in terms of Hall-Littlewood polynomials.
