Longest-run conjecture for Ramanujan and non-Ramanujan primes
Longest-run conjecture for Ramanujan and non-Ramanujan primes
Let be the th prime. For each , consider the longest consecutive run, among the primes at most , consisting entirely of Ramanujan primes; define analogously the longest run of non-Ramanujan primes.
Longest-run conjecture.
and the same inequality holds when “Ramanujan” is replaced by “non-Ramanujan”.
The prediction strengthens an earlier claim that arbitrarily long runs of both types exist. Numerical data in the paper support the stated logarithmic lower bound, but the supplied text gives no resolution.
Sources & referencesView supporting material
Primary source
Jonathan Sondow, John W. Nicholson and Tony D. Noe, “Ramanujan Primes: Bounds, Runs, Twins, and Gaps”, arXiv:1105.2249 (2011).
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