241230domain: NAppears in sequencesIntegers which have more than one coprime factorization into nonprime powers which sum to the same number.at n=32A072940Number of n X 3 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=18A207118