On 28-th Smarandache’s problem

Mladen Vassilev-Missana and Krassimir T. Atanassov
Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132
Volume 7, 2001, Number 2, Pages 61–64
Full paper (PDF, 469 Kb)

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Authors and affiliations

Mladen Vassilev-Missana
5, V. Hugo Str., Sofia-1124, Bulgaria

Krassimir T. Atanassov
CLBME – Bulg. Academy of Sci.,
P.O.Box 12, Sofia-1113, Bulgaria

References

1. C. Dumitrescu, V. Seleacu, Some Solutions and Questions in Number Theory, Erhus Univ. Press. Glendale. 1991.
2. F. Smarandache. Only Problems, Not Solutions!. Xiquan Publ. House, Chicago, 1993.
3. Ribenboim, P. The New Book of Prime Number Records. Springer. New York, 1995.
4. Vassilev-Missana, M. Three formulae for n-th prime and six for n-th term of twin primes. Notes on Number Theory and Discrete Mathematics, Vol. 7, 2001, No. 1, 15-20.