Friendly links for Y sequence system

• Y sequence system:
  • Definitions:
    • Yukito, "Y数列", Googology Research Wiki user blog, 2020. (in Japanese)
  • Guides:
    • in English: "Introduction to Y sequence", Googology Wiki, 2021.
    • in Chinese: "Y數列入門", 大數學 維基, 2021.
    • in Japanese: "Y数列", Googology Research Wiki, 2020.
• Programs:
  • naruyoko, "whYmountain", 2020.
  • naruyoko, "YNySequence", 2020.



• omega-Y sequence system:
  • Definitions:
    Though there is no written definition at the moment on May. 4, 2021, I took notes Yukito's explanation.
    • Structure of omega-Y, twitter, 2021 (in Japanese)
      This is a note I took when Yukito explained the structure of omega-Y on Mar. 27, 2021.
    • Expansion of omega-Y, twitter, 2021 (in Japanese)
      This is a note I took when Yukito explained how to expand omega-Y on Apr. 2, 2021.
  • Guides:
    • in Japanese: "Expansion of omega-Y(1,d)[n]", twitter, 2021.
    • omega-Y Figure Materials, Google Slide, 2021.
  • Programs:
    • naruyoko, "MEGA-whY mountain", 2021.