Difference between revisions 19943463 and 20477710 on enwiki

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Zeisel number
A '''Zeisel number''' is a [[square-free]] [[integer]] ''k'' with at least three [[prime factor]]s which fall into the pattern 

:<math>p_x = ap_{x - 1} + b</math>

where ''a'' and ''b'' are fixedsome integer constants and ''x'' is the index number of each prime factor in the factorization, sorted from lowest to highest. For the purpose of determining Zeisel numbers, <math>p_0 = 1</math>. The first few Zeisel numbers are

(contracted; show full)*[[Wikisource:Zeisel_numbers]]
*[http://mathworld.wolfram.com/ZeiselNumber.html MathWorld article]
*[http://www.mathpages.com/home/kmath015.htm MathPages article]

[[Category:Integer sequences]]

[[de:Zeisel-Zahl]]
[[fr:Nombre de Zeisel]]