Day 54 of making patterns on 13x13x13 Rubik's Cube

Day 54 of making patterns on 13x13x13 Rubik's Cube

Today's pattern is umbrella ☂️.

u/Super_M13 — 4 hours ago

The 13 Zodiac signs on 13x13x13 Rubik's Cube

This is the 4th group of 13 patterns I've made on this cube (previous groups: 1-13 14-26 27-39).

Even though there are officially only 12 Zodiac signs, I added a 13th sign (Ophiuchus ⛎︎), because... well, this Rubik’s Cube has 13 layers.

u/Super_M13 — 2 days ago

Day 52 of making patterns on 13x13x13 Rubik's Cube

Today's pattern is Ophiuchus ⛎︎, the unofficial 13th Zodiac sign, located between Scorpio ♏︎ and Sagittarius ♐︎.

u/Super_M13 — 2 days ago

Day 51 of making patterns on 13x13x13 Rubik's Cube

Today's pattern is Pisces ♓︎.

12 Zodiac signs are done. Is this the end? You will see tomorrow!

u/Super_M13 — 3 days ago

Day 49 of making patterns on 13x13x13 Rubik's Cube

Today's pattern is Capricorn ♑︎.

u/Super_M13 — 5 days ago

Days 53-78 of linking daily natural numbers to 13

Previous parts: days 1-13days 14-26days 27-39, days 40-52

In summary: days 53-65

  • 53 is the 13th non-Mersenne prime
  • 54 is the 13th number having equally many unitary and nonunitary prime divisors
  • 55 is the 13th odd nonprime
  • 56 is the 13th semiperfect number
  • 57 is the 13th odd composite number
  • 58 is the sum of all squarefree numbers from 1 to 13
  • 59 is the 13th 13-rough number
  • 60 is the 13th number whose square is an interprime
  • 61 is the 13th twin prime
  • 62 is the 13th even squarefree number
  • 63 is the 13th anti-Fibonacci number
  • 64 is the 13th number that is either a square or twice a square
  • 65 is the 13th number of the form a^(2)+b^(4)

And days 66-78

  • 66 is the 13th abundant number
  • 67 is the 13th prime number after 13, smallest prime number with digital sum equal to 13 and the smallest natural number k such that 13!+k is a prime
  • 68 is the 13th natural number k such that k^(2)+13 is a prime
  • 69 is the 13th odd semiprime
  • 70 is the 13th happy number
  • 71 is the 13th fortunate number (both definitions work)
  • 72 is the 13th Jordan–Pólya number and the 13th Ulam number after 13
  • 73 is the 13th lucky number after 13
  • 74 is the 13th natural number whose ternary expansion contains no 1's
  • 75 is the 13th number with no prime index divisible by all the other prime indices
  • 76 is the 13th natural number k for which there is exactly one smaller natural number i such that i*k is a square
  • 77 is the 13th number with prime aliquot sum
  • 78 is the 13th balanced number
u/Super_M13 — 6 days ago

Day 48 of making patterns on 13x13x13 Rubik's Cube

Today's pattern is Sagittarius ♐︎.

u/Super_M13 — 6 days ago