Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

To get a Julianthemath number, follow the text below this :

All Julianthemath numbers are the sum of 2 consecutive square numbers.

Example :

1 + 4 = 5 - A Julianthemath number

4 + 9 = 13

So, Julianthemath number * Julianthemath number = Julianthemath square

So, 5 * 13 = 65 - A Julianthemath square

If you play "Add 1, then post a fact.", include this.

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**berliner****Member**- Registered: 2013-04-02
- Posts: 69

Hi julianthemath;

Nice sequence, look at A001844 in the OEIS. These are also centered square numbers. I'm sure that in "Add 1, then post a fact" I will include julianmath numbers

Then julianthemath squares can be obtained with 4n^4 + 1.

Mathematichs is the queen of sciences - C. F. Gauss

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

Oh.

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**berliner****Member**- Registered: 2013-04-02
- Posts: 69

Sorry Julianthemath, but in the OEIS there are 200000 sequences, I sent to them 40 sequences and they accepted just 10.

Mathematichs is the queen of sciences - C. F. Gauss

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

Why sorry? What's wrong?

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**berliner****Member**- Registered: 2013-04-02
- Posts: 69

Sorry becuase your sequence is in the OEIS. It is never nice when you find something that someone else has already discovered.

Mathematichs is the queen of sciences - C. F. Gauss

Offline

**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,251

Oh. I didn't know that at first. But, is there a OEIS square and OEIS number?

Mathaholic | 10th most active poster | Maker of the 350,000th post | Person | rrr's classmate

Offline

**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,018

OEIS stands for Online Encyclopedia of Integer Sequences. It is a collection of number sequences.

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

Offline

**Mathegocart****Member**- Registered: 2012-04-29
- Posts: 1,847

anonimnystefy wrote:

OEIS stands for Online Encyclopedia of Integer Sequences. It is a collection of number sequences.

WOW :0

The integral of hope is reality.

Offline

Pages: **1**