Final answer:
An integer array 'numbers' storing the sequence {1, 2, 3, 1, 5} is declared and initialized without specifying the total number of elements as the size is inferred from the number of values provided.
Step-by-step explanation:
To declare and initialize an integer array numbers to store the sequence of numbers {1, 2, 3, 1, 5} without specifying the total number of elements, you can do the following in most programming languages:
int[] numbers = {1, 2, 3, 1, 5};
This line of code effectively creates an array with five elements, each initialized to a value from the given sequence. It's important to note that the size of the array is inferred from the number of values in the curly braces, so you don't need to explicitly state how many elements the array will contain.