74816

Appears in sequences

• "DHK" (bracelet, identity, unlabeled) transform of 1,0,1,0,... (odd).at n=32A032243
• Recurrence a(n) = a(n-2) + n^M for M=4, starting with a(0)=0, a(1)=1.at n=14A231303
• Number of (n+1) X (2+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).at n=9A234876
• Partial sums of 4th powers of the even numbers.at n=7A330151
• Draw a regular n-gon and the enclosing circle, then for each pair of vertices X, Y, draw a circle with diameter XY; the union of these figures is the graph H_n; sequence gives number of regions in H_n.at n=27A370978