Read More
Date: 30-11-2020
818
Date: 14-8-2020
881
Date: 17-1-2021
572
|
The th Smarandache-Wellin number is formed from the consecutive number sequence obtained by concatenating of the digits of the first primes. The first few are 2, 23, 235, 2357, 235711, ... (OEIS A019518; Smith 1996, Mudge 1997). This sequence converges to the digits of the Copeland-Erdős constant.
Prime Smarandache-Wellin numbers are called Smarandache-Wellin primes.
REFERENCES:
Crandall, R. and Pomerance, C. Prime Numbers: A Computational Perspective, 2nd ed. New York: Springer-Verlag, 2005.
Ibstedt, H. "Smarandache Concatenated Sequences." Ch. 5 in Computer Analysis of Number Sequences. Lupton, AZ: American Research Press, pp. 75-79, 1998.
Mudge, M. "Not Numerology but Numeralogy!" Personal Computer World, 279-280, 1997.
Sloane, N. J. A. Sequence A019518 in "The On-Line Encyclopedia of Integer Sequences."
Smith, S. "A Set of Conjectures on Smarandache Sequences." Bull. Pure Appl. Sci. 15E, 101-107, 1996.
|
|
علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
|
|
|
|
|
أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
|
|
|
|
|
مكتبة أمّ البنين النسويّة تصدر العدد 212 من مجلّة رياض الزهراء (عليها السلام)
|
|
|