17 (number)
From Tardis Wiki, the free Doctor Who reference
17 was a number.
Troilus told Vicki that he would be seventeen on his next birthday. Vicki replied that was hardly any older than she was. (TV: The Myth Makers)
At the time the Second Doctor burst into the ioniser control room in the Brittanicus Base, it was seventeen degrees out of the norm. Subsequently, Clent ordered the gauges to be adjusted. (TV: The Ice Warriors)
K9 Mark II knew of seventeen planets which had legends of vampires. (TV: State of Decay)
