77620

Appears in sequences

• a(n) = n * (10*n^2 - 6n + 1) = n * A087348(n).at n=20A104099
• Moessner triangle based on A000217.at n=23A125777
• Number of defective 3-colorings of an n X 5 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.at n=3A229634
• T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.at n=31A229637
• Number of defective 3-colorings of a 4 X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.at n=4A229640
• Number of n X 3 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nondecreasing.at n=19A266357