-2219

Appears in sequences

• Triangle read by rows: characteristic polynomials of certain matrices, see Mathematica program.at n=31A124040
• Values z of primitive solutions (x, y, z) to the Diophantine equation x^3 + y^3 + 2*z^3 = 128.at n=28A336230
• G.f. satisfies A(x) = (1 + x) * (1 + x/A(x)).at n=8A366325