3637248

Appears in sequences

• a(n) = Product_{i=1..n} phi(i) * Sum_{i=1..n} 1/phi(i) where phi is the Euler totient function A000010(n).at n=11A067578
• Numbers which can be expressed as the product of numbers made of only eights.at n=32A161146
• Number of defective 4-colorings of an n X 2 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..3 order.at n=16A229572