cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A126695 Numbers that can be expressed as the ratio between the product and the sum of n consecutive numbers with n>1.

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%I A126695 #6 Feb 29 2024 17:21:36
%S A126695 1,5,8,16,20,21,33,36,40,56,65,85,96,120,133,161,176,180,208,224,225,
%T A126695 261,280,320,341,385,408,432,456,481,533,560,616,645,705,736,756,800,
%U A126695 833,901,936,1008,1045,1120,1121,1152,1160,1232,1240
%N A126695 Numbers that can be expressed as the ratio between the product and the sum of n consecutive numbers with n>1.
%F A126695 Number = Product_{i=a..a+n-1} i / Sum_{i=a..a+n-1} i with a, n > 1
%F A126695 Integer values of (n+1)*binomial(a+n,a-1)/Sum_{i=0..n-1}(a+i) with a, n > 1
%e A126695 224 = 4*5*6*7*8/(4+5+6+7+8)
%e A126695 225 = 25*26*27/(25+26+27)
%e A126695 5544 = 11*12*13*14*15/(11+12+13+14+15)
%Y A126695 Cf. A370601
%K A126695 easy,nonn
%O A126695 1,2
%A A126695 _Paolo P. Lava_ and _Giorgio Balzarotti_, Feb 15 2007, corrected Feb 20 2007 and Mar 06 2007