177421

Properties

Appears in sequences

• Number of length n+2 0..4 arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.at n=5A250557
• T(n,k)=Number of length n+2 0..k arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.at n=41A250561
• Number of length 6+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.at n=3A250565
• Expansion of 1 / ( (1 - 9*x^3) * (1 - x/(1 - 9*x^3)^(1/3)) ).at n=16A373278
• Prime numbersat n=16116