Dmitry Kamenetsky's user avatar
Dmitry Kamenetsky's user avatar
Dmitry Kamenetsky's user avatar
Dmitry Kamenetsky
  • Member for 6 years, 11 months
  • Last seen this week
14 votes
1 answer
699 views

Solutions to $A^N+B^N=C^N \pm 1,\,$ for $N \geq 4$?

1 vote
3 answers
156 views

Hailstone numbers producing a specific number of rises and falls

4 votes
1 answer
222 views

Near misses to the start of a potential loop in the Collatz sequence

4 votes
1 answer
114 views

Tiling a square with 3:1 rectangles

10 votes
1 answer
280 views

Smallest number of $45^\circ-60^\circ-75^\circ$ triangles that tile a rectangle

24 votes
0 answers
610 views

Smallest $m>1$ such that the number of Collatz steps needed for $238!+m$ to reach $1$ differs from that for $238!+1$.

1 vote
0 answers
64 views

Process where you add an unused factor

0 votes
0 answers
52 views

Best non-lattice configurations for the Kissing number problem

0 votes
1 answer
113 views

Three touching spheres in d dimensions

1 vote
1 answer
142 views

Freeing the trapped knight

2 votes
0 answers
608 views

Relaxation of the $\pi^{\pi^{\pi^{\pi}}}$ problem

2 votes
2 answers
698 views

Largest prime that remains prime when any one of its digits is deleted

7 votes
0 answers
238 views

Prime generating modular function

1 vote
0 answers
49 views

Maximal cliques bounding number of edges [duplicate]

1 vote
0 answers
45 views

Orchard planting problem for circles

2 votes
0 answers
47 views

A grid where every combination of two colours appears exactly once

1 vote
3 answers
186 views

Most number of consecutive odd primes in a Collatz sequence

2 votes
1 answer
1k views

Shortest distance from a point to the paraboloid

7 votes
1 answer
149 views

Knife inside the square [closed]

2 votes
0 answers
62 views

Non-trivial solutions to $w^n = x^n + y^n + z^n$, for $n>4$ [closed]

8 votes
1 answer
395 views

Dividing a polygon into 6 equal regions