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qntmpktThursday, January 19, 2012. Eigensequence of a triangle, and Eigentriangle. Given triangle M as an infinite lower triangular matrix, there is some sequence prefaced with a "1" such that M*(seq prefaced with a 1) shifts the sequence to the left, deleting the "1", while the rest of the sequence remains the same. That seq is the Eigensequence of a triangle (defined without the prepended 1). Example: Given S(n) = (1, 2, 3, 4,.), our Toeplitz triangle =. We place a "1" at top, take powers, getting our left-sh...
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