0
This is the sequence of triangular numbers. You draw one dot. Then you draw two dots in the line below - one to the left and one to the right of the first dot. You now have a triangle, of three dots. Then you draw three dots in the next line and you get a triangle with 6 dots. Next, four more dots in the next line giving a triangle with 10 dots. The name is easy to understand if you can visualise or even actually draw these dots. It is difficult to demonstrate through an ordinary word processing package.
Add your answer:
Earn +20 pts
What is the name of the numerical sequence 1 3 6 10?
Assuming it continues 15, 21, 28, ... then it is the triangular numbers.
What is the next number in the sequence 1 3 6 10 15 21?
28
What number comes next in sequence 1 3 6 10 15 21 28?
35
What is the next number in the sequence 3-15-6-30-21?
The next number in the sequence 3-15-6-30-21 is -207.
Next number in sequence 10 8 7 14 15 13 12 24 25?
21
What is 5 over 7 minus 5 over 21?
5/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/21
What is the greatest common factor of 10 15 and 21?
The GCF of 10, 15, and 21 is 1.
Is 36 a trangular number?
Yes it is. In sequence from 1, the first 10 triangular numbers are... 1, 3, 6, 10, 15, 21, 28, 36, 45 & 55.
What is the next number in the following sequence 1361015?
I'm guessing your sequence is 1, 3, 6, 10, 15, ... In which case it continues: 21, 28, 36, 45, 55, 66, ... (These are the triangular numbers.)
What are the six smallest keys that you can create by multiplying two different prime numbers?
They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.
What is the next number in the following sequence 16 26 21 31?
26 As far as I can tell the sequence is +10,-5,+10,-5.
The sequence name for 1 1 2 3 5 8 13 21?
Fibonacci Sequence
