22.2 The prime number spiral beginning with 17 613
22.2 The prime number spiral beginning with 17 ......
17The numbers on the 45 degree line aren^2 +n+17.
Letf(n)=n^2 +n+17. The numbersf(0),f(1), ...f(15)are all
prime.
nf(n) nf(n) nf(n) nf(n)
017 119 223 329
437 547 659 773
8 89 9 107 10 127 11 149
12 173 13 199 14 227 15 257