223604

Appears in sequences

• Dimension of 8-variable non-commutative harmonics (twisted derivative). The dimension of the space of non-commutative polynomials in 8 variables which are killed by all symmetric differential operators (where for a monomial w, d_{xi} ( xi w ) = w and d_{xi} ( xj w ) = 0 for i/=j).at n=6A122372
• Number of (w,x,y,z) with all terms in {1,...,n} and w*x < 2*y*z.at n=24A211795