A030352 Least k such that base 3 representation of n begins at s(k), where s=A030351.

1, 4, 1, 5, 3, 10, 4, 16, 7, 1, 33, 6, 5, 20, 21, 3, 15, 49, 10, 44, 35, 4, 17, 43, 16, 70, 39, 12, 7, 31, 36, 1, 47, 33, 141, 6, 30, 129, 5, 27, 87, 20, 24, 76, 101, 21, 93, 89, 3, 81, 77, 15, 69, 210, 49, 187, 10, 22, 79, 202, 44, 180, 168, 35