2961100800

Appears in sequences

• Nonsingular n X n matrices over GF(4).at n=4A053291
• Dimension of 4-variable non-commutative harmonics (Hausdorff derivative). The dimension of the space of non-commutative polynomials in 4 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).at n=16A122393