A103702 Add 3 to each of the preceding digits, beginning with 1.

1, 4, 7, 10, 4, 3, 7, 6, 10, 9, 4, 3, 12, 7, 6, 4, 5, 10, 9, 7, 8, 4, 3, 12, 10, 11, 7, 6, 4, 5, 4, 3, 4, 4, 10, 9, 7, 8, 7, 6, 7, 7, 4, 3, 12, 10, 11, 10, 9, 10, 10, 7, 6, 4, 5, 4, 3, 4, 4, 4, 3, 12, 4, 3, 4, 3, 10, 9, 7, 8, 7, 6, 7, 7, 7, 6, 4, 5, 7, 6, 7, 6, 4, 3, 12, 10, 11, 10, 9, 10, 10, 10, 9, 7