378512

Appears in sequences

• a(n) = lcm(n, A025586(n)), least common multiple of n and largest value in 3x+1 iteration list started at n.at n=40A087259
• a(n) = lcm(4n, A025586(4n)), least common multiple of 4n and the largest value in 3x+1 iteration list started at 4n.at n=40A087261
• Number of -n..n arrays x(0..3) of 4 elements with nonzero sum and with zero through 3 differences all nonzero.at n=12A200167