93716domain: NAppears in sequencesEven composites in A145832 with at least three distinct prime factors.at n=30A145916Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 2, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=20A293057