41430

Appears in sequences

• a(n) = Sum_{i=1..floor((n+1)/4)} a(2*i-1) * a(n-2*i+1), with a(1)=a(2)=1 and a(3)=3.at n=18A024725
• Convolution of A008619 and A001400.at n=41A139672
• Number of (n+1) X 3 binary arrays with each element of every 2 X 2 subblock being the sum mod 2 of two others.at n=5A183838
• Number of (n+1)X7 binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others.at n=1A183842
• T(n,k)=Number of (n+1)X(k+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others.at n=22A183845
• T(n,k)=Number of (n+1)X(k+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others.at n=26A183845