A134586 a(n) = a(n-1) + u(n) if a(n-1) not divisible 2 else a(n) = a(n-1) / 2, where u(n) is the product of digits of n (A007954)

1, 2, 1, 4, 2, 1, 7, 14, 7, 16, 8, 4, 2, 1, 5, 10, 5, 12, 6, 3, 3, 5, 9, 15, 23, 33, 45, 59, 75, 93, 93, 96, 48, 24, 12, 6, 3, 24, 12, 6, 3, 7, 15, 27, 43, 63, 87, 115, 147, 183, 183, 188, 94, 47, 67, 92, 46, 23, 63, 108, 54, 27, 39, 57, 81, 111, 147, 189, 237, 291, 291, 298, 149