74581

Appears in sequences

• Spiral sieve using Fibonacci numbers.at n=23A005626
• Arises in enumerating orientable small covers over cubes.at n=6A153255
• Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nX3 array.at n=5A220792
• T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nXk array.at n=33A220794
• a(n) = (12*n + 1)*(5184*n^2 + 540*n + 13).at n=1A348645