Triangle T(n,k) giving number of symmetric polynomials of degree n in k noncommuting variables, n >=2, 2 <= k <= n.

A055106

Triangle T(n,k) giving number of symmetric polynomials of degree n in k noncommuting variables, n >=2, 2 <= k <= n.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =12a(8) =8a(9) =1a(10) =1a(11) =33a(12) =44a(13) =13a(14) =1a(15) =1a(16) =88a(17) =208a(18) =109a(19) =19a(20) =1a(21) =1a(22) =232a(23) =910a(24) =753a(25) =223a(26) =26a(27) =1a(28) =1a(29) =609

External references