Question

The pattern of $n$-th prime minus its reversal in even and odd bases

score 196 · Answer 1 · 2019-09-01 21:52:26

196

Views

The pattern of $n$-th prime minus its reversal in even and odd bases

Published on 01 Sep 2019 - 21:52

score 156 · Answer 2 · 2014-04-20 22:18:49

156

Views

Is the size of the Online Encyclopedia of Integer Sequences bounded by aleph-null?

Published on 20 Apr 2014 - 22:18

score 314 · Answer 3 · 2014-06-12 13:41:38

314

Views

Under assumption that $\frac{M_{n+1}}{M_n} \le 2$, what is true?

Published on 12 Jun 2014 - 13:41

score 288 · Answer 4 · 2014-08-09 21:03:29

288

Views

How do I determine if I should submit a sequence of numbers to the OEIS?

Published on 09 Aug 2014 - 21:03

score 186 · Answer 5 · 2014-10-01 17:15:46

Where can I find the number of occurrences of every integer $n$ in the Sloane encyclopedia of integer sequence (OEIS)?

score 89 · Answer 6 · 2014-12-06 18:33:15

89

Views

Closed Form for a Sequence

Published on 06 Dec 2014 - 18:33

score 94 · Answer 7 · 2019-10-12 14:58:47

94

Views

Are all positive odd integer matchs this three conditions will be a prime number?

Published on 12 Oct 2019 - 14:58

score 115 · Answer 8 · 2026-02-24 02:13:05

115

Views

(Why) are $0, 1, 10, 120, 1540, 7140$ the only triangular tetrahedral numbers?

Published on 24 Feb 2026 - 2:13

score 94 · Answer 9 · 2020-01-02 16:27:53

94

Views

Finding the next term in a sequence: $1,4,17,19,148,.?.$

Published on 02 Jan 2020 - 16:27

score 306 · Answer 10 · 2020-01-17 05:34:54

306

Views

Number of strings of $\{0,1,2\}$ : the longest substrings of $1$ is odd-length.

Published on 17 Jan 2020 - 5:34

score 61 · Answer 11 · 2020-01-17 19:40:11

61

Views

How many of different connected graphs with n vertices? Excluding of isomorphic graphs.

Published on 17 Jan 2020 - 19:40

score 82 · Answer 12 · 2020-02-06 15:19:38

82

Views

Are the "distended" numbers precisely the numbers for which no two subsets of their divisors have the same sum?

Published on 06 Feb 2020 - 15:19

score 155 · Answer 13 · 2026-03-26 04:29:21

155

Views

Counting deltahedra with $2n$ faces

Published on 26 Mar 2026 - 4:29

score 103 · Answer 14 · 2026-03-26 01:11:00

103

Views

About $A_{n+1}=A_{n}+A_{n}^{2}$ and OEIS $A122888$

Published on 26 Mar 2026 - 1:11

score 43 · Answer 15 · 2020-02-11 13:30:44

43

Views

What is meant with "whose xor-sum is n"?

Published on 11 Feb 2020 - 13:30

List Question

The pattern of $n$-th prime minus its reversal in even and odd bases

Is the size of the Online Encyclopedia of Integer Sequences bounded by aleph-null?

Under assumption that $\frac{M_{n+1}}{M_n} \le 2$, what is true?

How do I determine if I should submit a sequence of numbers to the OEIS?

Where can I find the number of occurrences of every integer $n$ in the Sloane encyclopedia of integer sequence (OEIS)?

Closed Form for a Sequence

Are all positive odd integer matchs this three conditions will be a prime number?

(Why) are $0, 1, 10, 120, 1540, 7140$ the only triangular tetrahedral numbers?

Finding the next term in a sequence: $1,4,17,19,148,.?.$

Number of strings of $\{0,1,2\}$ : the longest substrings of $1$ is odd-length.

How many of different connected graphs with n vertices? Excluding of isomorphic graphs.

Are the "distended" numbers precisely the numbers for which no two subsets of their divisors have the same sum?

Counting deltahedra with $2n$ faces

About $A_{n+1}=A_{n}+A_{n}^{2}$ and OEIS $A122888$

What is meant with "whose xor-sum is n"?

Trending Questions

Popular # Hahtags

Popular Questions