The series is multiples of six written together side by side and grouped 2 at a time as shown below. [(6)(1][2)(1][8)(2][4)(3][0)(3][6)(4][2)(4][8)(5][4)(6][0) & so on.
If you remove all commas and add one 0 and 8, you get multiples of 6: 6-12-18-24-30-36-42-48
