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.
%I A054997 #14 Sep 20 2023 15:53:35 %S A054997 5,17,23,31,36,53,59,60,67,71,72,90,97,100,101,109,112,119,120,127, %T A054997 131,138,139,143,152,173,180,181,187,204,210,211,221,228,233,258,263, %U A054997 269,271,276,300,304,323,330,331,349,353,372,373,379,384,390,395,408 %N A054997 Integers that can be expressed as the sum of consecutive primes in exactly 2 ways. %D A054997 R. K. Guy, Unsolved Problems in Number Theory, section C2. %H A054997 Ray Chandler, <a href="/A054997/b054997.txt">Table of n, a(n) for n = 1..10000</a> %H A054997 Carlos Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_046.htm">Puzzle 46. Primes expressible as sum of consecutive primes in K ways</a>, The Prime Puzzles and Problems Connection. %F A054997 A054845(a(n)) = 2. - _Ray Chandler_, Sep 20 2023 %e A054997 5 can be expressed as 5 or 2+3, so 5 is in the sequence. %Y A054997 Cf. A054845, A054859, A054996, A054998, A054999, A055500, A055001. %K A054997 nonn %O A054997 1,1 %A A054997 _Jud McCranie_, May 30 2000