-10144

Appears in sequences

• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j) = gcd(i+1, j+1) (A204030).at n=28A204111
• Expansion of e.g.f. 1/(1 - (sin(x) + x*cos(x))/2 ).at n=8A349104