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 A085959 #37 Apr 10 2025 16:05:08 %S A085959 0,37,74,111,148,185,222,259,296,333,370,407,444,481,518,555,592,629, %T A085959 666,703,740,777,814,851,888,925,962,999,1036,1073,1110,1147,1184, %U A085959 1221,1258,1295,1332,1369,1406,1443,1480,1517,1554,1591,1628,1665,1702,1739 %N A085959 Multiples of 37. %C A085959 If a(k) = 100*u + 10*v + w with 0 <= u, v, w < 10, then 100*v + 10*w + u is also a term. %C A085959 Numbers for which the sum of "digits" base 1000 is divisible by 37, since 999 = 3^3 * 37. For instance, 10089601558 gives 10 + 089 + 601 + 558 = 1258, 1 + 258 = 259 = 7 * 37. - _Daniel Forgues_, Feb 22 2016 %D A085959 David Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Books, 1986. %H A085959 Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/RecursiveSequences.html">Recursive Sequences</a>. %H A085959 Luis Manuel Rivera, <a href="http://arxiv.org/abs/1406.3081">Integer sequences and k-commuting permutations</a>, arXiv preprint arXiv:1406.3081 [math.CO], 2014-2015. %H A085959 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1). %F A085959 a(n) = a(n-1) + 37; a(0)=0. %F A085959 G.f.: 37*x/(1-x)^2. - _Vincenzo Librandi_, Feb 23 2016 %F A085959 From _Elmo R. Oliveira_, Apr 10 2025: (Start) %F A085959 E.g.f.: 37*x*exp(x). %F A085959 a(n) = 37*n. %F A085959 a(n) = 2*a(n-1) - a(n-2). (End) %t A085959 Range[0, 2000, 37] (* _Vladimir Joseph Stephan Orlovsky_, Jun 03 2011 *) %t A085959 CoefficientList[Series[37 x / (1 - x)^2, {x, 0, 33}], x] (* _Vincenzo Librandi_, Feb 23 2016 *) %o A085959 (Magma) [37*n: n in [0..50]]; // _Vincenzo Librandi_, Feb 23 2016 %Y A085959 Cf. A044102. %K A085959 nonn,easy %O A085959 0,2 %A A085959 _Reinhard Zumkeller_, Aug 17 2003