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- In[1]:= HanteiQ[n_] :=
- Block[{m = n^2},
- PrimeQ[m + 1] && NextPrime[m + 1, 4] == m + 13 &&
- NextPrime[m + 13] == m + 27];
- Total[Select[Range[10, 150000000, 10], HanteiQ]] // Timing
- Out[1]= {515.804, 676333270}
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