id:A055105 - OEIS Search Results

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Triangle read by rows: T(n,k) = number of noncommutative symmetric polynomials of degree n that have exactly k different variables appearing in each monomial and which generate the algebra of all noncommutative symmetric polynomials (n >= 1, 1 <= k <= n).

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1, 0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 12, 8, 1, 0, 1, 33, 44, 13, 1, 0, 1, 88, 208, 109, 19, 1, 0, 1, 232, 910, 753, 223, 26, 1, 0, 1, 609, 3809, 4674, 2091, 405, 34, 1, 0, 1, 1596, 15521, 27161, 17220, 4926, 677, 43, 1, 0, 1, 4180, 62185, 151134, 130480, 51702, 10342 (list; table; graph; listen)

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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