A116118 Numbers k such that k concatenated with k-6 gives the product of two numbers which differ by 5.
10, 12, 100, 102, 132, 406, 510, 852, 1000, 1002, 7930, 10000, 10002, 66942, 100000, 100002, 113322, 440056, 1000000, 1000002, 5289256, 10000000, 10000002, 58477510, 100000000, 100000002, 111333222, 164378892, 183673470
Offset: 1
Examples
1000000000//999999994 = 999999998 * 1000000003, where // denotes concatenation.