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 A236476 Primes p such that p^3 + p - 1 is prime. 1
 3, 7, 43, 73, 103, 109, 127, 139, 151, 199, 223, 241, 283, 313, 367, 379, 421, 541, 631, 661, 733, 739, 751, 769, 829, 991, 1117, 1129, 1201, 1231, 1249, 1297, 1303, 1429, 1471, 1663, 1669, 1693, 1699, 1741, 1789, 1867, 1933 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes in the sequence A236475. LINKS Daniel Starodubtsev, Table of n, a(n) for n = 1..10000 EXAMPLE 241 is prime and 241^3 + 241 - 1 = 13997761 is prime. PROG (Python) import sympy from sympy import isprime {print(n) for n in range(10**4) if isprime(n) and isprime(n**3+n-1)} (PARI) s=[]; forprime(p=2, 2000, if(isprime(p^3+p-1), s=concat(s, p))); s \\ Colin Barker, Jan 27 2014 CROSSREFS Cf. A236475. Sequence in context: A257366 A141304 A213893 * A282178 A101208 A050633 Adjacent sequences:  A236473 A236474 A236475 * A236477 A236478 A236479 KEYWORD nonn AUTHOR Derek Orr, Jan 26 2014 STATUS approved

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Last modified August 4 10:11 EDT 2021. Contains 346447 sequences. (Running on oeis4.)