483286domain: NAppears in sequencesCONTINUANT transform of {d(n)}, 1, 2, 2, 3, 2, 4, ... (A000005).at n=11A071108Numbers n such that if n = a U b (where U denotes concatenation) then sigma*(a) + sigma*(b) = abs(sigma*(n) - n), where sigma*(n) is the sum of the anti-divisors of n.at n=32A239686