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A015582
Inverse of 1573rd cyclotomic polynomial.
1
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
OFFSET
0,1
COMMENTS
Periodic with period length 1573. - Ray Chandler, Apr 07 2017
FORMULA
cyclotomic(1573,x) is a polynomial of 120th order in the variable x^11, so it is c = 1 - x^11 - x^132 + x^264 + ... + x^1320, or with y = x^11 we can write c = 1 - y + y^11 - y^12 + y^13 - y^14 ... + y^120. - R. J. Mathar, Oct 20 2008
MAPLE
with(numtheory, cyclotomic); c := n->series(1/cyclotomic(n, x), x, 80); c(1573);
MATHEMATICA
CoefficientList[Series[1/Cyclotomic[1573, x], {x, 0, 100}], x][[;; 81]] (* Jean-François Alcover, Jul 05 2011 *)
CROSSREFS
Different from A014856 and A100910.
Sequence in context: A015824 A014856 A015703 * A100910 A369004 A359605
KEYWORD
sign
AUTHOR
EXTENSIONS
Incorrect formula deleted by N. J. A. Sloane, Oct 20 2008
STATUS
approved