91422

Appears in sequences

• Expansion of 2*x^2*(7+14*x+4*x^2)/((1+x-x^2)*(1-2*x-10*x^2-6*x^3)).at n=7A120714
• E.g.f.: (1/x) * Series_Reversion( -x + 2*x*exp(-x) ).at n=5A258872
• Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011.at n=10A260762