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.

A096694 Lesser of twin balanced primes (A090403).

Original entry on oeis.org

149, 227, 419, 1997, 3329, 3671, 5501, 6449, 13691, 15887, 21647, 22481, 26711, 27749, 31247, 32411, 32831, 37547, 39227, 41759, 44027, 47777, 49121, 50261, 53231, 54539, 54917, 55217, 64877, 69149, 71411, 74717, 90821, 93239, 107069
Offset: 1

Views

Author

Robert G. Wilson v, Jun 28 2004

Keywords

Crossrefs

Cf. A090403.

Programs

  • Mathematica
    f[n_] := f[n] = Block[{c = 0, k = 1, p = Prime[n], s = Plus @@ Table[ Prime[i], {i, n - 1, n + 1}]}, While[k != n - 1, If[s == (2k + 1)p, c++ ]; k++; s = s + Prime[n - k] + Prime[n + k]]; c]; p = Prime[ Select[ Range[2, 22456], f[ # ] != 0 &]]; Transpose[ Select[ Partition[p, 2, 1], #[[1]] + 2 == #[[2]] &]][[1]]