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.

A338533 Primes in A338529/2.

Original entry on oeis.org

31, 1873, 6163, 4133, 8093, 18211, 10529, 18233, 12743, 14557, 15473, 16057, 16607, 37571, 28793, 22669, 92221, 58073, 65993, 34759, 37781, 32563, 36473, 106163, 70003, 48487, 64621, 75527, 87133, 117701, 89017, 171877, 61223, 61283, 62603, 96997, 75533, 103657, 116797, 81899, 82241, 108533
Offset: 1

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Author

J. M. Bergot and Robert Israel, Nov 01 2020

Keywords

Comments

The primes are listed in the order in which they appear in A338529. Some appear more than once, e.g. a(481) = a(669) = 2427137 because 2427137 = A338529(11966)/2 = A338529(16893)/2.

Examples

			A338529(2)/2 = 31 is prime, so a(1) = 31.
A338529(38)/2 = 1873 is prime, so a(2) = 1873.
A338529(65)/2 = 6163 is prime, so a(3) = 6163.
		

Crossrefs

Cf. A338529.

Programs

  • Maple
    select(isprime, [seq(ithprime(n+2)*ithprime(n+3)-ithprime(n)*ithprime(n+1), n=2..10000)]/2);