[seqfan] What is in a name? A161621

John W. Nicholson reddwarf2956 at yahoo.com
Fri Dec 13 15:27:21 CET 2013


I don't know where to start. Can someone simply this title?

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A161621     Numerators of the ratios (in lowest terms) of numbers of primes in one square interval to that of the interval and its successor. The numerators are derived from sequence A014085. The expression is: R(n)=(PrimePi[(n+1)^2] - PrimePi[n^2])/(PrimePi[(n+2)^2] - PrimePi[n^2]); The first few ratios are: 1/2, 2/5, 3/5, 1/3, 4/7,... 
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John W. Nicholson


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