A104491 Prime numbers n for which the square excess of the n-th prime is prime.
2, 5, 13, 19, 23, 37, 67, 71, 83, 107, 109, 113, 139, 157, 173, 199, 271
Offset: 1
Examples
199 is an element of this sequence because 199 is prime and the 199th prime is 1217 and 1217 - 34^2 = 61 and 61 is prime, while 1217 - 35^2 = -8.