102779

Appears in sequences

• n is equal to the number of 1's in all numbers <= n written in base 9.at n=8A014884
• a(n) = (2*n-1)*(5*n^2-5*n+6)/6.at n=39A063489
• Number of n X n 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=5A303519
• Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=5A303523
• Number of 6Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=5A303529
• a(n) = 4*n^3 - 6*n^2 + 6*n - 2 + (-1)^n.at n=29A382973