perplexus.info :: Sequences : Fill in the blank

Fill in the blank (Posted on 2002-05-20)

What is the "row heading" of the third row (marked with the question mark) in the table shown below?

    4 :  6, 11,  7
    3 :  8,  4, 12
    ? : 10, 55, 15

Explain the scheme used.

See The Solution Submitted by levik

Rating: 3.3333 (6 votes)

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