Answer:
317
Explanation:
The numbers change by -7 each step in the sequence. Let n be the position in the sequence, starting with n=0 for the first point. The value of a number at the nth position is (352 - 7*n).
The 43th position has the value 317.
n # Dif 352 -7n
0 352 352
1 345 -7 345
2 338 -7 338
3 331 -7 331
4 324 -7 324
43 317 -7 51