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.

A067374 Integers expressible as the sum of (at least two) consecutive primes in at least 4 ways.

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%I A067374 #16 Aug 11 2024 14:41:34
%S A067374 311,863,1164,1320,1650,1854,2856,2867,3198,3264,3754,4200,4920,5100,
%T A067374 5770,5999,6504,8152,10134,10320,10536,10649,11058,12294,12438,12762,
%U A067374 12820,12954,12990,14369,14699,14826,15329,15610,15762,16199,16277
%N A067374 Integers expressible as the sum of (at least two) consecutive primes in at least 4 ways.
%H A067374 Donovan Johnson, <a href="/A067374/b067374.txt">Table of n, a(n) for n = 1..1000</a>
%H A067374 P. De Geest, <a href="https://www.worldofnumbers.com/em122.htm">WONplate 122</a>
%H A067374 C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_046.htm">Puzzle 46</a>
%F A067374 A084143(a(n)) > 3. - _Ray Chandler_, Sep 20 2023
%e A067374 E.g., 311 = 101 + 103 + 107 = 53 + 59 + 61 + 67 + 71 = 31 + 37 + 41 + 43 + 47 + 53 + 59 = 11 + 13 + 17 + 19 + 23 + 29 + 31 + 37 + 41 + 43 + 47.
%t A067374 Clear[lst,lst1,m,n,p,a,b] m=2*6!; lst={}; Do[p=Prime[a]; Do[p+=Prime[b]; If[p<Prime[m]*2+3,AppendTo[lst,p]],{b,a+1,m+2,1}],{a,m}]; lst1=Sort[lst]; lst={}; Do[If[lst1[[n]]==lst1[[n+1]]&&lst1[[n]]==lst1[[n+2]]&&lst1[[n]]==lst1[[n+3]],AppendTo[lst,lst1[[n]]]],{n,Length[lst1]-3}]; Union[lst] (* _Vladimir Joseph Stephan Orlovsky_, Aug 15 2009 *)
%Y A067374 Cf. A050936, A067372-A067381, A054999.
%K A067374 nonn
%O A067374 1,1
%A A067374 _Patrick De Geest_, Feb 04 2002
%E A067374 Offset corrected by _Donovan Johnson_, Nov 14 2013