Set

Type

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

Even

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

Odd

2, 3, 5, 7, 11, 13, 17, ...

Prime

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

Square

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

Triangle

1, 2, 4, 8, 16, 32, 64, 128, ...

Powers of 2

(1), 2, 3, 4, 6, 9, 12, 18, (36)

Factors of 36

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

Cube

1, 2, 6, 24, 120, 720, 5040, ...

Factorial

6, 28, 496, 8128, 33550336, ...

Perfect

