Word.ws English Dictionary

R-pentominoes

R-pentominoes is the plural of R-pentomino.

Meaning of R-pentomino

Noun

R-pentomino (plural R-pentominoes)

  1. A particular five-square polyomino.
    1. 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...1990 January 15, Paul Dietz, “Gosper's Algorithm for Life”, in comp.theory.cell-automata (Usenet)

Questions about R-pentominoes

What is R-pentominoes the plural of?
R-pentominoes is the plural of R-pentomino.

Words near R-pentominoes in the dictionary

  1. R-module
  2. R-modules
  3. R-n-R
  4. R-Pattz
  5. R-pentomino
  6. R-pentominoes
  7. R-principle
  8. r-process
  9. r-processes
  10. R-R
  11. R-rated

Source and license

Adapted from Wiktionary: R-pentominoes (page history and authors); R-pentomino (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “R-pentominoes.” Word.ws, https://word.ws/r-pentominoes. Based on Wiktionary, CC BY-SA 4.0.