Calculate octagonal number 30
Octagonal Numbers form dots in the shape of an octagon.
Octagonal Number Image:
Octagonal Number Formula:
On = n(3n - 2)
Given n = 30, we have:
O30 = 30(3(30) - 2)
O30 = 30(90 - 2)
O30 = 30(88)
O30 = 2,640
Octagonal Number List 1 - 30
| n | Octagonal number On |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 21 |
| 4 | 40 |
| 5 | 65 |
| 6 | 96 |
| 7 | 133 |
| 8 | 176 |
| 9 | 225 |
| 10 | 280 |
| 11 | 341 |
| 12 | 408 |
| 13 | 481 |
| 14 | 560 |
| 15 | 645 |
| 16 | 736 |
| 17 | 833 |
| 18 | 936 |
| 19 | 1045 |
| 20 | 1160 |
| 21 | 1281 |
| 22 | 1408 |
| 23 | 1541 |
| 24 | 1680 |
| 25 | 1825 |
| 26 | 1976 |
| 27 | 2133 |
| 28 | 2296 |
| 29 | 2465 |
| 30 | 2640 |
What is the Answer?
O30 = 2,640
How does the Octagonal Number Calculator work?
Free Octagonal Number Calculator - This calculator determines the nth octagonal number
This calculator has 1 input.
This calculator has 1 input.
What 1 formula is used for the Octagonal Number Calculator?
On = n(3n - 2)
What 4 concepts are covered in the Octagonal Number Calculator?
- number
- an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
- octagon
- An eight (8) sided polygon
P = 8s - octagonal number
- property
- an attribute, quality, or characteristic of something
