34309

Appears in sequences

• a(n) = a(n-1) + Sum_{k=1..floor(n/4)} a(n-4k), with a(0)=1.at n=31A113439
• Fourth row of A113439.at n=7A113443
• Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,0,0 for x=0,1,2,3,4.at n=11A198180
• Number of (n+1) X (6+1) 0..1 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.at n=13A251126
• Numbers k > 0 such that 10^(k+4) - 23 is prime.at n=9A265629
• G.f. = b(2)*b(4)*b(6)/(x^9+x^8+x^7+x^6-x^5-x^4-x^3-x^2-x+1), where b(k) = (1-x^k)/(1-x).at n=14A266372