A140815

Irregular triangle read by rows: the n-th row gives the coefficients of Phi(n, 1-x), where Phi(n, x) is the n-th cyclotomic polynomial.

-1, 0, -1, 2, 1, -3, 3, 1, -2, 2, 1, -5, 10, -10, 5, 1, -1, 1, 1, -7, 21, -35, 35, -21, 7, 1, -4, 6, -4, 2, 1, -6, 15, -21, 18, -9, 3, 1, -3, 4, -2, 1, 1, -11, 55, -165, 330, -462, 462, -330, 165, -55, 11, 1, -4, 5, -2, 1, 1, -13, 78, -286, 715, -1287, 1716, -1716, 1287, -715, 286, -78, 13, 1, -5, 11, -13, 9, -3, 1, 1, -7, 21

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