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 A099332 Primes p such that p = a^2 + b^2 for a,b>0 and a+b is prime. 5
 2, 5, 13, 17, 29, 37, 61, 73, 89, 97, 101, 109, 149, 157, 181, 193, 229, 241, 257, 269, 277, 293, 349, 409, 421, 433, 461, 521, 541, 593, 601, 641, 661, 701, 709, 733, 769, 797, 829, 853, 881, 929, 937, 953, 997, 1009, 1021, 1049, 1061, 1069, 1109, 1117 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Let q=a+b. For a specific prime q, the number of distinct primes p that are the sum of two squares is A082519(q)/2. Primes p of the form (q-b)^2 + b^2, where q is prime and 0

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Last modified July 20 05:43 EDT 2019. Contains 325168 sequences. (Running on oeis4.)