13 (thirteen) is a number in the Arabic numeral system. It has been depicted as a Muppet character, on occasion.

Songs about 13

"Lucky Thirteen"
(First: Episode 2828)

"Number of the Day"
(First: Episode 4517)

"Number of the Day Waltz"
(First: Episode 4105)

"Rap Song #13"
(First: Episode 2547)

"Thirteen"
(First: Episode 3142)

"Thirteen's Not So Lucky"
(First: Episode 4280)

"Turkey in the Straw"
(First: Episode 2711)

Segments about 13

Crossover #13
(First: Episode 0220)

Number Creatures
(First: Episode 2691)

13 Hamburgers
(First: Episode 2785)

Abstract Count
(First: Episode 2809)

Growing Numbers
(First: Episode 2924)

Springtime 13
(First: Episode 3276)

Parade of Numbers
(First: Episode 3378)

Milo Counting
(First: Episode 3553)

Computer Matching: 13 thingamabobs
(First: Episode 3936)

Suzie Kabloozie Judge 13
(First: Episode 3941)

The Number of the Day
(First: Episode 3986)

13 waterskiing hippos
(First: Episode 4019)

13 swings
(First: Episode 4122)

The Number of the Day: Murray
(First: Episode 4206)

Number of the Day: Lottery
(First: Episode 4280)

Family Photo #13
(First: Episode 4409)

Number of the Day (How Many Cookies)
(First: Episode 4704)

Packing for Grandma's
(First: Episode 4806)

Number of the Day: 13 Martians
(First: Episode 5004)

13 family poem
(First: Episode 5127)