145473

Appears in sequences

• a(n) = a(n-1) + a(n-4), starting 1,1,1,3.at n=37A014101
• a(n) = number of (0,1) matrices of size n X n whose determinants are k, where -L <= k <= +L and L = A003432(n).at n=20A094813
• Number of n X 4 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=17A302676