The BCG Count To A Million! Page 63
When I was a teenager in the 70s I really wanted a Datsun 280Z.
281 is the highway closest to my house.
Busses & Roads are too easy...
I'll post this so that Bill can upload a photo of an old Intel processor after we do 285. 
Quote: billwill @ 6th April 2016, 4:51 PM BSTBusses & Roads are too easy...
Ooooh..............I wish I was smart 
Oh all right then...
An IBM XT with Intel 286 CPU.
CCLXXXVIII
The 290 theorem says a positive definite integral quadratic form is universal if it takes the numbers from 1 to 290 as values. A more precise version states that, if an integer valued integral quadratic form represents all the numbers 1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 17, 19, 21, 22, 23, 26, 29, 30, 31, 34, 35, 37, 42, 58, 93, 110, 145, 203, 290 (sequence A030051 in OEIS), then it represents all positive integers, and for each of these 29 numbers, there is such a quadratic form representing all other 28 positive integers with the exception of this one number.
Simple eh?
USS Billingsley (DD-293) was a Clemson-class destroyer built for the United States Navy during World War I.
