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 A178937 #21 Feb 22 2020 08:30:35
%S A178937 1,2,4,7,12,20,35,58,101,172,300,509,888,1538,2683,4611,8033,13941,
%T A178937 24236,41766,72504,125592,217563,374757,648378,1120243,1934800,
%U A178937 3328622,5743517,9901009,17061027,29314809,50478219,86859244,149408560,256438542,440869300
%N A178937 Partial sums of number of different shapes formed by bending a piece of wire of length n in the plane A066372.
%C A178937 Number of different shapes formed by bending (+ or - 90 degrees at each bend) a piece of wire of length <= n in the plane.
%e A178937 a(9) = 1 + 1 + 2 + 3 + 5 + 8 + 15 + 23 + 43 = 101 is prime. The next prime is a(15) = 2683.
%t A178937 Cases[Import["https://oeis.org/A066372/b066372.txt", "Table"], {_, _}][[All, 2]] // Accumulate (* _Jean-François Alcover_, Feb 22 2020 *)
%Y A178937 Cf. A001997, A066372.
%K A178937 nonn,walk
%O A178937 1,2
%A A178937 _Jonathan Vos Post_, Dec 30 2010
%E A178937 More terms from _Nathaniel Johnston_, Jan 04 2011
%E A178937 More terms from A066372 by _Jean-François Alcover_, Feb 22 2020