61254

Appears in sequences

• Engel expansion of sinh(1/3).at n=41A068380
• a(n) = n^5 + 3*n^3 + 2*n = n*(n^2 + 1)*(n^2 + 2).at n=8A120573
• Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=3A207702
• T(n,k) = Number of n X k 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=48A207703
• Number of 4Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=6A207705
• Number of triangles in a Star of David of size n.at n=18A299965
• Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=5A302459
• Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=6A302464