A182829 Positions of the numbers 3*i+1 in A026225; i.e., when all the numbers (3*i+1)*3^j are arranged in increasing order.
1, 3, 4, 6, 8, 9, 10, 12, 13, 15, 17, 18, 20, 22, 23, 24, 26, 27, 28, 30, 31, 33, 35, 36, 37, 39, 40, 42, 45, 47, 49, 50, 51, 53, 54, 56, 58, 59, 61, 63, 64, 65, 67, 68, 69, 71, 72, 74, 76, 77, 78, 80, 81, 82, 84, 85, 87, 89, 90, 91, 93, 94, 96, 99
Offset: 1