39268

Appears in sequences

• Number of nX2 0,1 arrays with adjacent row and column sums unequal.at n=10A203604
• Number of n X n 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=3A283408
• Number of nX4 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=3A283411
• T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors.at n=24A283415
• Number of n X n triangular (0,1)-matrices with exactly 2n entries equal to 1 and no zero rows or columns.at n=6A357140
• G.f. satisfies A(x) = 1 + x * (1 + x^2)^2 * A(x * (1 + x^2)).at n=13A360888
• Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=38A391864