Dimension of 5-variable non-commutative harmonics (Hausdorff derivative). The dimension of the space of non-commutative polynomials in 5 variables which are killed by all symmetric differential operators (where for a monomial w, d_{xi} ( w ) = sum over all subwords of w deleting xi once).
A122394
Dimension of 5-variable non-commutative harmonics (Hausdorff derivative). The dimension of the space of non-commutative polynomials in 5 variables which are killed by all symmetric differential operators (where for a monomial w, d_{xi} ( w ) = sum over all subwords of w deleting xi once).
Terms
- a(0) =1a(1) =4a(2) =19a(3) =95a(4) =475a(5) =2376a(6) =11881a(7) =59406a(8) =297029a(9) =1485144a(10) =7425719a(11) =37128595a(12) =185642975a(13) =928214876a(14) =4641074381a(15) =23205371904a(16) =116026859520a(17) =580134297600
External references
- oeis: A122394