Understand Common Integer Sequences

The following important sequences should be familiar to you:

 

Counting numbers

1, 2, 3, 4, 5, 6, 7, 8...

 

Multiples of 2

2, 4, 6, 8, 10, 12, 14, 16...

 

Powers of 2

2, 4, 8, 16, 32, 64, 128, 256...

 

Powers of 10

10   100   1000   10,000   100,000

 

Fibonacci

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89...

The next number in the sequence is made by adding the two previous numbers eg. 2 + 3 = 5 and 34 + 55 = 89 

 

Square numbers

1, 4, 9, 16, 25, 36, 49, 64...

 

Cube numbers

1, 8, 27, 64, 125, 216, 343, 512...

 

Triangle numbers

1, 3, 6, 10, 15, 21, 28, 36, 45...

 

Now let's consolidate your knowledge of these sequences by tackling some questions!