OFFSET
0,3
COMMENTS
Hankel transform of A186195.
MATHEMATICA
f[k_] := (2^(k - 1)) (-1)^(k + 1)
t[n_] := Table[f[k], {k, 1, n}]
a[n_] := SymmetricPolynomial[n - 1, t[n]]
Table[a[n], {n, 1, 22}] (* A186196 signed *)
(* Clark Kimberling, Dec 30 2011 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Paul Barry, Feb 14 2011
STATUS
approved