A044467 Numbers n such that string 1,4 occurs in the base 5 representation of n but not of n+1.

9, 34, 49, 59, 84, 109, 134, 159, 174, 184, 209, 249, 259, 284, 299, 309, 334, 359, 384, 409, 424, 434, 459, 484, 509, 534, 549, 559, 584, 609, 634, 659, 674, 684, 709, 734, 759, 784, 799, 809, 834, 874, 884, 909, 924, 934, 959