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A055107
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Triangle T(k,n) giving number of symmetric polynomials of degree n in k noncommuting variables, n >=2, 2 <= k <= n.
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14
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1, 1, 1, 1, 4, 1, 1, 8, 12, 1, 1, 13, 44, 33, 1, 1, 19, 109, 208, 88, 1, 1, 26, 223, 753, 910, 232, 1, 1, 34, 405, 2091, 4674, 3809, 609, 1, 1, 43, 677, 4926, 17220, 27161, 15521, 1596, 1, 1, 53, 1064, 10342, 51702, 130480, 151134, 62185, 4180, 1
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OFFSET
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2,5
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COMMENTS
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REFERENCES
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M. C. Wolf, Symmetric Functions of Non-commutative Elements, Duke Math. J., 2 (1936), 626-637.
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LINKS
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EXAMPLE
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1; 1,1; 1,4,1; 1,8,12,1; 1,13,44,33,1; ...
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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