A116154 Numbers k such that k concatenated with itself gives the product of two numbers which differ by 1.
132, 406, 510, 852, 7930, 66942, 113322, 440056, 5289256, 58477510, 111333222, 164378892, 183673470, 200444410, 206611570, 224376732, 277008310, 297520662, 305024040, 326530612, 353505556, 444000556, 479289942
Offset: 1