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Which number comes next in the series 5 16 49 104?

Published in Number Sequences 1 min read

The next number in the series 5, 16, 49, 104 is 181, according to the provided reference.

Analysis of the Series

While the reference directly provides the answer, let's examine a possible pattern to understand how it might have been derived. Identifying the underlying pattern helps confirm the solution.

  • Differences between terms: We can look at the differences between consecutive numbers to see if there's a discernible progression.

    • 16 - 5 = 11
    • 49 - 16 = 33
    • 104 - 49 = 55
  • Differences between the differences: The differences (11, 33, 55) themselves form a pattern.

    • 33 - 11 = 22
    • 55 - 33 = 22

Since the second differences are constant (22), we can assume a quadratic relationship governs the sequence. We can project that the next difference between terms should be 55 + 22 = 77. Therefore, the next number in the series would be 104 + 77 = 181.

Verification

This analysis supports the answer of 181 found in the reference material.

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