M. Vassilev-Missana

Notes on Number Theory and Discrete Mathematics, ISSN 1310-5132

Volume 7, 2001, Number 1, Pages 10—14

**Download 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 *π*_{2}(*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 *π*_{2}(*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

## Cite this paper

APAVassilev, M. (2001). Some new formulae for the twin primes counting function *π*_{2}(*n*). Notes on Number Theory and Discrete Mathematics, 7(1), 10-14.

Vassilev, M. “Some new formulae for the twin primes counting function *π*_{2}(*n*).” Notes on Number Theory and Discrete Mathematics 7, no. 1 (2001): 10-14.

Vassilev, M. “Some new formulae for the twin primes counting function *π*_{2}(*n*).” Notes on Number Theory and Discrete Mathematics 7.1 (2001): 10-14. Print.