cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A144939 Primes that are the sum of prime 5-tuples (A022006).

Original entry on oeis.org

53, 83, 7433, 978683, 1238033, 2325833, 3168983, 3305483, 4148633, 4289783, 5112533, 5456333, 5867933, 6231833, 6842333, 12093383, 12499733, 13820633, 14201333, 15516383, 18107333, 19189283, 19470233, 21121883, 24887183
Offset: 1

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Programs

  • Mathematica
    lst={};Do[p=Prime[n];If[PrimeQ[p+2]&&PrimeQ[p+6]&&PrimeQ[p+8]&&PrimeQ[p+12],s=p+p+2+p+6+p+8+p+12;If[PrimeQ[s],AppendTo[lst,s]]],{n,10!}];lst
    Select[Total/@Select[Partition[Prime[Range[16*10^5]],5,1],Differences[#] == {2,4,2,4}&],PrimeQ] (* Harvey P. Dale, Dec 08 2014 *)

Formula

5+7+11+13+17=53