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 A160993 #41 Jun 13 2015 00:53:12 %S A160993 1,0,1,1,1,2,3,4,6,9,12,18,26,37,54,78,112,162,234,337,487,703,1014, %T A160993 1464,2113,3049,4401,6352,9167,13231,19096,27560,39777,57409,82856, %U A160993 119584,172592,249096,359513,518874,748874 %N A160993 The number of ordered ways to achieve a score of n in American football. %C A160993 Number of compositions (ordered partitions) of n into parts 2, 3, 6, and 7. - _Joerg Arndt_, Aug 13 2013 %C A160993 The sequence holds only when considering number of points scored and not HOW those points are scored. Sequence A237997 applies when taking into account the two ways to score 2 points (safety; two-point conversion following a touchdown). - _Bob Selcoe_, Feb 16 2014 %H A160993 <a href="/index/Rec#order_07">Index entries for linear recurrences with constant coefficients</a>, signature (0,1,1,0,0,1,1). %F A160993 G.f.: 1 / ( (1+x+x^2)*(1-x^5+x^3-x^2-x) ). %F A160993 a(n)+a(n+1)+a(n+2) = A107293(n+6). - _R. J. Mathar_, Feb 18 2014 %e A160993 There are four ways to get a total of 7 points: (a) touchdown and extra point, (b) a field goal followed by two safeties, (c) a safety, field goal, and safety, and (d) two safeties followed by a field goal. %o A160993 (PARI) lista(nn) = {x = xx + O(xx^nn); Vec(1/(1-x^2-x^3-x^6-x^7));} \\ _Michel Marcus_, Aug 13 2013 %Y A160993 A029150 gives the number of unordered ways to achieve a score of n. %K A160993 easy,nonn %O A160993 0,6 %A A160993 _Lee A. Newberg_, Jun 01 2009