Mammoth Memory

Sequence

A sequence is a list of numbers which are related to each other.

A list of sequins which are numbered will help you remember that a sequence is a list of numbers which are related to each other 

Here is a sequence of sequins. A list for you to peruse.

 

There are many well known sequences you should recognise.

 

Example 1

Even number sequence

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

 

Example 2

Odd number sequence

1, 3, 5, 7, 9, 11 ..........

 

Example 3

A sequence of square numbers (or power of 2 or indicies of 2).

1x1 is 1 and 2x2 is 4

3 squared is 9

4x4 is 16

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

 

Example 4

A sequence of cube numbers

Cube numbers are a sequence 

 `2times2times2=8`

`3times3times3=27`

`4times4times4=64`

 8, 27, 64, 125 ...............

 

Example 5

A sequence of power of 10 (or indices of 10).

 `10^1`     `=` `10`
`10^2` `=` `10times10` `=` `100`
`10^3` `=` `10times10times10` `=` `1000`
`10^4` `=` `10times10times10times10` `=` `10,000`

10, 100, 1000, 10,000 .......... 

 

NOTE:

These are all multiples of 10.

 

Example 6

Sequence of triangular numbers.

Triangular numbers are a sequence too!

1, 3, 6, 10, 15 ..............

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