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A076625 Maximum absolute value of coefficient of P(n,x) where P(n,x)=4^(n-1)*prod(k=0,n,x-cos(kPi/n)^2). 0
2, 8, 40, 208, 1200, 6528, 34048, 196608, 1112064, 6062080, 33701888, 194871296, 1091371008, 5950930944, 34801188864, 198474465280, 1105056497664, 6298980581376, 36394596564992, 205774030635008, 1151529050439680 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

EXAMPLE

p(3,x) = 16*x^4 - 40*x^3 + 33*x^2 -10*x +1 hence a(3)=40

CROSSREFS

Sequence in context: A187071 A154626 A003305 * A139415 A119817 A025570

Adjacent sequences:  A076622 A076623 A076624 * A076626 A076627 A076628

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Oct 22 2002

STATUS

approved

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Last modified January 24 16:47 EST 2020. Contains 331209 sequences. (Running on oeis4.)