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Difference-divisible sequences

Published online by Cambridge University Press:  01 August 2016

John Mason
John Mason*
Affiliation:
Centre for Mathematics Education, Open University, Milton Keynes MK7 6AA
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Extract

The sequence 1, 3, 7, 13, 21, … arises in many ways, for example from the integers placed in a spiral on a square grid, the terms arising where the spiral intersects a diagonal on the grid, and as the central axis of a triangular array of numbers:

Type
Research Article
Information
The Mathematical Gazette , Volume 74 , Issue 469 , October 1990 , pp. 223 - 228
Copyright
Copyright © The Mathematical Association 1990

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