M. Vassilev-Missana
Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132
Volume 7, 2001, Number 1, Pages 10–14
Full paper (PDF, 151 Kb)
Details
Authors and affiliations
M. Vassilev-Missana
5, V. Hugo Str., Sofia-1124, Bulgaria
Abstract
For every n > 1, let π2(n) denote the number of primes p such that p ≤ n and p + 2 is also a prime. In the present paper some new formulae for π2(n) are proposed.
References
- Ribenboim, P. The New Book of Prime Number Records. Springer, New York, 1995.
- Davenport, H. Multiplicative Numebr Theory. Markham Publ. Co., Chicago, 1967.
- Sierpinski, W. Co wiemy, a czego nie wiemy o liczbach pierwszych. Panstwowe Zaklady Wydawnictw Szkolnych Warszawa, 1961.
Related papers
- Vassilev, M. (2001). Three formulae for n-th prime and six for n-th term of twin primes. Notes on Number Theory and Discrete Mathematics, 7(1), 15-20.
Cite this paper
Vassilev, M. (2001). Some new formulae for the twin primes counting function π2(n). Notes on Number Theory and Discrete Mathematics, 7(1), 10-14.