A050136 a(n)=[ a(n-1)/2 ] if this is not among 0,a(1),...,a(n-1), else a(n)=5*n.

1, 10, 5, 20, 25, 12, 6, 3, 45, 22, 11, 60, 30, 15, 7, 80, 40, 90, 95, 47, 23, 110, 55, 27, 13, 130, 65, 32, 16, 8, 4, 2, 165, 82, 41, 180, 185, 92, 46, 200, 100, 50, 215, 107, 53, 26, 235, 117, 58, 29, 14, 260, 265, 132, 66, 33, 285