R-pentomino

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A particular five-square polyomino.
  2. 2
    A particular five-square polyomino.; The methuselah based on this polyomino that, in Conway's Game of Life, has a lifespan of 1,103 generations.

    "I came up with an implementation of an algorithm on my Sparcstation 1 that does all 1103 generations of the R-pentomino, including the gliders, in 1.3 seconds (no display), and runs o.....o. ..o...o. ..o..o.o .o.o.... (a pattern by Wainright recommended to me by Gosper) out to 10,000 generations in 45 seconds (again, without display)."

Synonyms

All synonyms
f-pentomino

Example

More examples

"I came up with an implementation of an algorithm on my Sparcstation 1 that does all 1103 generations of the R-pentomino, including the gliders, in 1.3 seconds (no display), and runs o.....o. ..o...o. ..o..o.o .o.o.... (a pattern by Wainright recommended to me by Gosper) out to 10,000 generations in 45 seconds (again, without display)."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.