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 A180107 #9 Mar 30 2012 16:51:57 %S A180107 0,1,1,2,4,6,9,12,15,20,25,30,35,42,49,56,63,70,77,88,99,110,121,132, %T A180107 143,156,169,182,195,208,221,238,255,272,289,306,323,342,361,380,399, %U A180107 418,437,460,483,506,529,552,575,598,621,644,667,696,725,754,783,812,841,870,899,930,961,992,1023,1054,1085,1116,1147,1184,1221,1258,1295,1332,1369,1406,1443,1480,1517,1558,1599,1640 %N A180107 Partial sums of terms in A180101. %C A180107 Apart from initial terms, same as A036441 and A076271, but the simple definition warrants an independent entry. %H A180107 T. D. Noe, <a href="/A180107/b180107.txt">Table of n, a(n) for n = 0..10000</a> %Y A180107 Cf. A180101, A036441, A076271. %K A180107 nonn %O A180107 0,4 %A A180107 _N. J. A. Sloane_, Jan 16 2011