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 A164939 These are prime numbers p such that p^3 + p^2 + p + 2 is also prime 1
 3, 5, 7, 13, 23, 29, 43, 79, 89, 113, 139, 163, 193, 197, 199, 229, 233, 277, 283, 317, 367, 379, 389, 503, 619, 727, 769, 797, 829, 839, 953, 967, 977, 997, 1063, 1229, 1297, 1307, 1399, 1409, 1483, 1607, 1619, 1637, 1697, 1759, 1777, 1877, 1979, 1987, 1999 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 EXAMPLE 3 is prime as is 3^3 + 3^2 + 3 + 2 = 41 MATHEMATICA Select[Prime[Range[500]], PrimeQ[ #^3 + #^2 + # + 2]&] CROSSREFS Sequence in context: A005235 A107664 A085013 * A125272 A127443 A003229 Adjacent sequences:  A164936 A164937 A164938 * A164940 A164941 A164942 KEYWORD easy,nonn AUTHOR B. R. Becker (bbecker(AT)panda3.phys.unm.edu), Sep 01 2009 STATUS approved

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Last modified December 15 09:08 EST 2018. Contains 318148 sequences. (Running on oeis4.)