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 A055107 Triangle T(k,n) giving number of symmetric polynomials of degree n in k noncommuting variables, n >=2, 2 <= k <= n. 14
 1, 1, 1, 1, 4, 1, 1, 8, 12, 1, 1, 13, 44, 33, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 REFERENCES M. C. Wolf, Symmetric Functions of Non-commutative Elements, Duke Math. J., 2 (1936), 626-637. LINKS EXAMPLE 1; 1,1; 1,4,1; 1,8,12,1; 1,13,44,33,1; ... CROSSREFS Row sums are A074664. Cf. A055105, A055106. Sequence in context: A317065 A316932 A317703 * A297193 A272867 A206438 Adjacent sequences:  A055104 A055105 A055106 * A055108 A055109 A055110 KEYWORD nonn,tabl,nice AUTHOR N. J. A. Sloane, Jun 14 2000 STATUS approved

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Last modified December 7 09:33 EST 2019. Contains 329843 sequences. (Running on oeis4.)