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 A075614 Let P(k,X)=4^k*prod(i=1,k,X-cos(Pi*i/k)) (which is a polynomial with integer coefficients). Sequence gives maximum values of coefficients of P(n,X). 0
 4, 16, 64, 256, 1024, 4096, 20480, 98304, 458752, 2097152, 9437184, 41943040, 188743680, 922746880, 4429185024, 20937965568, 97710505984, 450971566080, 2061584302080, 9620726743040, 46729244180480, 224300372066304 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE P(3,X)=64*X^3 + 64*X^2 - 16*X -16 hence a(3)=64 CROSSREFS Sequence in context: A000302 A262710 A050734 * A083592 A069029 A238940 Adjacent sequences:  A075611 A075612 A075613 * A075615 A075616 A075617 KEYWORD easy,nonn AUTHOR Benoit Cloitre, Oct 11 2002 STATUS approved

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Last modified October 18 18:10 EDT 2018. Contains 316323 sequences. (Running on oeis4.)