To find the missing number in the sequence, we need to identify the pattern.
Looking at the given numbers: 56, 3, 49, 27, 18, 74, 62, 19, 8, 35, 65, 92, ?, 34, 81
We can see that the pattern alternates between two different sequences.
The first sequence is: 56, 49, 18, 19, 35, 92, 81
The second sequence is: 3, 27, 74, 8, 65, ?, 34
For the first sequence, we can see that the numbers are decreasing by a certain amount each time.
56 - 7 = 49
49 - 31 = 18
18 + 1 = 19
19 + 16 = 35
35 + 57 = 92
92 - 11 = 81
For the second sequence, we can see that the numbers are increasing by a certain amount each time.
3 + 24 = 27
27 + 47 = 74
74 - 66 = 8
8 + 57 = 65
65 - 31 = 34
Based on these patterns, we can determine that the missing number in the sequence is 57.
Therefore, the complete sequence is: 56, 3, 49, 27, 18, 74, 62, 19, 8, 35, 65, 92, 57, 34, 81.