411 REFERENCE · Wiktionary
Ducci sequence
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after Italian mathematician Enrico Ducci (1864–1940), who discovered in the 1930s that every such sequence eventually becomes periodic.
Noun
en math A sequence of n-tuples of integers , such that the next n-tuple in the sequence is formed by taking the absolute differences of neighbouring integers:
en eponyms