id:A123956 - OEIS Search Results

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Chebyshev polynomial recursion into matrices back into triangular sequence: p(k, x) = 2*x*p(k - 1, x) - p(k - 2, x) The absolute values of the coefficients of the two triangular sequences match exactly.

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-1, 1, 1, -1, -2, -2, 1, -3, 4, 4, -1, 4, 8, -8, -8, 1, 5, -12, -20, 16, 16, -1, -6, -18, 32, 48, -32, -32, 1, -7, 24, 56, -80, -112, 64, 64, -1, 8, 32, -80, -160, 192, 256, -128, -128, 1, 9, -40, -120, 240, 432, -448, -576, 256, 256, -1, -10, -50, 160, 400, -672, -1120, 1024, 1280, -512, -512 (list; table; graph; listen)

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

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