401083

Appears in sequences

• Solve 2^n - 2 = 7(x^2 - x) + (y^2 - y) for (x,y) with x>0, y>0; sequence gives value of x.at n=41A076632
• Expansion of (1-x) / (1+x^2+2*x^3).at n=40A078033
• a(n+3) = 2a(n+2) - 3a(n+1) + 2a(n); a(0) = 1, a(1) = 1, a(2) = 0.at n=41A105578
• Half the number of nX3 binary arrays with each element equal to at least two neighbors.at n=19A180752