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A272074
Numbers k such that k^4 + 29*k^2 + 101 is prime.
30
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 23, 26, 31, 32, 34, 35, 37, 43, 44, 45, 47, 49, 53, 56, 60, 61, 62, 66, 67, 68, 70, 71, 72, 74, 75, 79, 80, 81, 84, 85, 89, 90, 91, 93, 96, 99
OFFSET
1,3
LINKS
Eric Weisstein's World of Mathematics, Prime-Generating Polynomials
EXAMPLE
4 is in this sequence since 4^4 + 29*4^2 + 101 = 256+464+101 = 821 is prime.
MATHEMATICA
Select[Range[0, 100], PrimeQ[#^4+29#^2+101]&] (* Harvey P. Dale, Dec 15 2020 *)
PROG
(PARI) lista(nn) = for(n=0, nn, if(ispseudoprime(n^4+29*n^2+101), print1(n, ", "))); \\ Altug Alkan, Apr 19 2016
KEYWORD
nonn,less
AUTHOR
Robert Price, Apr 19 2016
STATUS
approved