1,4,7,10

The given sequence is 1, 4, 7, 10. This sequence appears to be an arithmetic sequence because there is a common difference between consecutive terms.

To find the common difference, you can subtract the previous term from the current term. For example, to find the common difference between the second and first terms, subtract 1 from 4:

4 - 1 = 3

Similarly, if you subtract 4 from the third term, you get:

7 - 4 = 3

And if you subtract 7 from the fourth term, you get:

10 - 7 = 3

Since the result is the same in each case, the common difference is 3.

So, the arithmetic sequence with a common difference of 3 can be expressed as:

1, 4, 7, 10