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Search: id:A055107
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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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15
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| 1, 1, 1, 1, 4, 1, 1, 8, 12, 1, 1, 13, 44, 33, 1
(list; table; graph; listen)
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OFFSET
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0,5
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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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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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Row sums are A074664. Cf. A055105, A055106.
Sequence in context: A141541 A132789 A100754 this_sequence A128137 A136100 A141905
Adjacent sequences: A055104 A055105 A055106 this_sequence A055108 A055109 A055110
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KEYWORD
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nonn,tabl,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Jun 14 2000
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