noun1
- •
A sequence of n-tuples
of integers (
a_1,
a_2,...,
a_
n),
such that the next n-tuple in the sequence is formed
by taking the absolute differences
of neighbouring integers: (
a_1,
a_2,...,
a_
n)→(|
a_
1-a_2|,|
a_2-a_3|,...,|
a_n-a_1|),.
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