Question

Understanding a particular algorithm that computes $\sum\limits_{i=1}^n\lfloor\frac ni\rfloor$ with complexity less than $O(n)$

score 153 · Answer 1 · 2026-04-15 06:46:27

153

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Understanding a particular algorithm that computes $\sum\limits_{i=1}^n\lfloor\frac ni\rfloor$ with complexity less than $O(n)$

Published on 15 Apr 2026 - 6:46

score 137 · Answer 2 · 2026-04-17 04:46:23

137

Views

Finding the $n$th term for the sequence $1, \frac{1}{2}, 3, \frac{1}{4}, 5, \frac{1}{6}, \dots$

Published on 17 Apr 2026 - 4:46

score 476 · Answer 3 · 2026-04-15 22:49:46

476

Views

What is the relation between this binary number with no two 1 side by side and fibonacci sequence?

Published on 15 Apr 2026 - 22:49

score 47 · Answer 4 · 2026-04-16 10:54:00

47

Views

Trace of a product of a recursive series of non-full rank matrices

Published on 16 Apr 2026 - 10:54

score 83 · Answer 5 · 2026-04-12 05:54:09

83

Views

How can I figure out the total solutions in this Combinatorics problem?

Published on 12 Apr 2026 - 5:54

score 369 · Answer 6 · 2026-04-09 22:08:22

369

Views

Creating coexistent patterns, with several pattern-less systems

Published on 09 Apr 2026 - 22:08

score 58 · Answer 7 · 2026-04-11 19:12:44

58

Views

Equation for value of p given x

Published on 11 Apr 2026 - 19:12

score 173 · Answer 8 · 2026-04-16 16:15:09

173

Views

Evaluate an unknown operator

Published on 16 Apr 2026 - 16:15

score 383 · Answer 9 · 2026-04-14 23:43:45

383

Views

Easy as $3.14$ question

Published on 14 Apr 2026 - 23:43

score 432 · Answer 10 · 2026-04-14 06:38:50

432

Views

Using primes to create unique character mappings for scrambled substring searching

Published on 14 Apr 2026 - 6:38

score 832 · Answer 11 · 2026-04-10 08:14:46

832

Views

Do the differences of perfect squares apply to perfect cubes and more?

Published on 10 Apr 2026 - 8:14

score 752 · Answer 12 · 2026-03-25 13:56:26

752

Views

Fractals - when the number of seed shapes that can fit into the scaled-up copy is non-integer.

Published on 25 Mar 2026 - 13:56

score 174 · Answer 13 · 2026-04-12 17:00:25

174

Views

Finding an expression to represent this pattern

Published on 12 Apr 2026 - 17:00

score 3.4k · Answer 14 · 2026-04-16 00:16:42

3.4k

Views

How to solve the sequence: $87, 89, 95, 107, ?, 157$

Published on 16 Apr 2026 - 0:16

score 9k · Answer 15 · 2026-04-13 01:55:10

9k

Views

How to solve this sequence $165,195,255,285,345,x$

Published on 13 Apr 2026 - 1:55

List Question

Understanding a particular algorithm that computes $\sum\limits_{i=1}^n\lfloor\frac ni\rfloor$ with complexity less than $O(n)$

Finding the $n$th term for the sequence $1, \frac{1}{2}, 3, \frac{1}{4}, 5, \frac{1}{6}, \dots$

What is the relation between this binary number with no two 1 side by side and fibonacci sequence?

Trace of a product of a recursive series of non-full rank matrices

How can I figure out the total solutions in this Combinatorics problem?

Creating coexistent patterns, with several pattern-less systems

Equation for value of p given x

Evaluate an unknown operator

Easy as $3.14$ question

Using primes to create unique character mappings for scrambled substring searching

Do the differences of perfect squares apply to perfect cubes and more?

Fractals - when the number of seed shapes that can fit into the scaled-up copy is non-integer.

Finding an expression to represent this pattern

How to solve the sequence: $87, 89, 95, 107, ?, 157$

How to solve this sequence $165,195,255,285,345,x$

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