57440
domain: N
Appears in sequences
- Numbers k such that 183*2^k+1 is prime.at n=38A032468
- a(n) = Sum_{1 <= x, y <= n} lcm(x, y).at n=22A064951
- Sum of terms in n-th row of A077316.at n=31A077318
- a(n) = (5/6)*n^3+(5/2)*n^2+(8/3)*n.at n=40A092185
- Number of defective 4-colorings of an n X 2 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..3 order.at n=7A229749
- T(n,k) = number of defective 4-colorings of an n X k 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..3 order.at n=37A229755
- T(n,k) = number of defective 4-colorings of an n X k 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..3 order.at n=43A229755
- Number of (6+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=17A258559
- a(n) = 36*n^2 - 4*n (n>=1).at n=39A304380