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Line 3: In [[Douglas Hofstadter]]'s book [[Metamagical Themas]], the sequence is credited to J. K. Aronson of Oxford, England; it is based on the observation that ordinal numbers in the English language always end in "th".<ref>{{citation\|title=Metamagical Themas: Questing For The Essence Of Mind And Pattern\|first=Douglas R.\|last=Hofstadter\|authorlink=Douglas Hofstadter\|publisher=Basic Books\|year=1996\|isbn=9780465045662\|page=44\|url=http://books.google.com/books?id=o8jzWF7rD6oC&pg=PA44}}.</ref> The first few numbers in the sequence are: :1, 4, 11, 16, 24, 29, 33~~...~~, ... {{OEIS\|A005224}}. == References ==

Aronson's sequence: Difference between revisions