3 9 10 30 31 93 94
(Alternating repeated sequence: 3n, n+1)
1 3 5 15 17 51 53
(Alternating repeated sequence: 3n, n+2)
2 4 5 10 11 22 23
(Alternating repeated sequence: 2n, n+1)
4 8 10 20 22 44 46
(Alternating repeated sequence: 2n, n+2)
6 12 17 34 39 78 83
(Alternating repeated sequence: 2n, n+5)
1 2 12 24 34 68 78
(Alternating repeated sequence: 2n, n+10)
9 27 28 84 85 255 256
(Alternating repeated sequence: 3n, n+1)
6 12 16 32 36 72 76
(Alternating repeated sequence: 2n, n+4)
4 16 17 68 69 276 277
(Alternating repeated sequence: 4n, n+1)
1 5 6 30 31 155 156
(Alternating repeated sequence: 5n, n+1)
1 4 5 20 21 84 85
(Alternating repeated sequence: 4n, n+1)
16 32 31 62 61 122 121
(Alternating repeated sequence: 2n, n-1)
4 8 6 12 10 20 18
(Alternating repeated sequence: 2n, n-2)
2 4 3 6 5 10 9
(Alternating repeated sequence: 2n, n-1)
1 3 2 6 5 15 14
(Alternating repeated sequence: 3n, n-1)
4 16 15 60 59 236 235
(Alternating repeated sequence: 4n, n-1)
20 40 30 60 50 100 90
(Alternating repeated sequence: 2n, n-10)
100 200 190 380 370 740 730
(Alternating repeated sequence: 2n, n-10)
100 200 180 360 340 680 660
(Alternating repeated sequence: 2n, n-20)
50 50 46 46 42 42 38
(Alternating repeated sequence: n, n-4)
37 37 35 35 33 33 31
(Alternating repeated sequence: n, n-2)
1 10 5 50 45 450 445
(Alternating repeated sequence: 10n, n-5)
40 80 75 150 145 290 285
(Alternating repeated sequence: 2n, n-5)
30 90 82 246 238 714 706
(Alternating repeated sequence: 3n, n-8)
2 4 4 8 8 16 16
(Alternating repeated sequence: 2n, n)