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BP218 Something is missing vs. an extra copy of something is added.
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COMMENTS

A generalization of Hofstadter's BP148.

CROSSREFS

Adjacent-numbered pages:
BP213 BP214 BP215 BP216 BP217  *  BP219 BP220 BP221 BP222 BP223

KEYWORD

nice, abstract, traditional

CONCEPT missing_part (info | search),
regular_irregular_change (info | search),
extra_part (info | search)

AUTHOR

Giuseppe Insana

    page 1

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