

A281910


Minimum possible absolute value over all coefficients of p(x)/(1x)^n, where p is a power series with +1 coefficients.


0




OFFSET

0,4


COMMENTS

It is known that a(7) >= 2124, and that is conjectured to be the true value.


LINKS



EXAMPLE

For n = 3 consider p(x) = (x+1)(x1)^2/(x^4+1). Considered as a power series, this has coefficients + 1 only. Then p(x)/(1x)^3 has coefficients bounded by 2 in absolute value.


CROSSREFS



KEYWORD

nonn,hard,more


AUTHOR



STATUS

approved



