OFFSET
0,2
COMMENTS
See comment in A175669.
FORMULA
Q^(4)_n(1)=1.
EXAMPLE
The sequence of polynomials begins
Q^(3)_0=1,
Q^(3)_1=(6*x^5+15*x^4+10*x^3-x)/30,
Q^(3)_2=(36*x^10+280*x^9+795*x^8+900*x^7+88*x^6-450*x^5-20*x^4+200*x^3+x^2-30*x)/1800.
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Vladimir Shevelev and Peter J. C. Moses, Dec 23 2011
STATUS
approved