A224862 Numbers n such that 90*n + 71 and 90*n + 73 are twin primes.
0, 4, 5, 9, 11, 12, 20, 23, 28, 39, 40, 42, 49, 54, 55, 62, 63, 72, 103, 104, 114, 133, 154, 161, 173, 174, 181, 182, 184, 187, 202, 205, 215, 221, 224, 230, 238, 249, 250, 257, 258, 261, 263, 264, 270, 291, 296, 298, 308, 338, 342, 345, 348, 361, 364, 389, 394
Offset: 1
Keywords
Programs
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Mathematica
Select[Range[0, 499], PrimeQ[90# + 71] && PrimeQ[90# + 73] &] (* copied from: Alonso del Arte, Jul 22 2013 *)