43091
domain: N
Appears in sequences
- a(n) = (2*n-1)*(5*n^2-5*n+2)/2.at n=20A063495
- 1/4 the number of (n+1)X3 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=2A209852
- 1/4 the number of (n+1)X4 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=1A209853
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=7A209858
- T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or four distinct clockwise edge differences.at n=8A209858
- Sum of all the middle parts in the partitions of 3n into 3 parts.at n=40A236364
- Sum of the middle parts in the partitions of 4n-1 into 3 parts.at n=30A240707
- Number of vertices in a graph of n adjacent rectangles in a row with all possible diagonals drawn, as in A306302, but without the rectangles' edges which are perpendicular to the row.at n=23A369176