164824

Appears in sequences

• a(n) = 2*a(n-1) + 4*a(n-2) - 6*a(n-3) - 3*a(n-4).at n=16A136201
• Numbers n such that if n = a U b (where U denotes concatenation) then abs(sigma*(a) - sigma*(b)) = abs(sigma*(n) - n), where sigma*(n) is the sum of the anti-divisors of n.at n=22A239687