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 A008630 #13 Jul 08 2025 01:19:15 %S A008630 1,1,2,3,5,7,11,15,21,28,38,49,65,82,105,131,164,201,248,300,364,437, %T A008630 523,620,736,865,1016,1186,1382,1600,1852,2131,2449,2803,3202,3644, %U A008630 4142,4690,5303,5979,6730 %N A008630 Molien series for A_7. %D A008630 D. J. Benson, Polynomial Invariants of Finite Groups, Cambridge, 1993, p. 105. %H A008630 <a href="/index/Mo#Molien">Index entries for Molien series</a> %H A008630 <a href="/index/Rec#order_25">Index entries for linear recurrences with constant coefficients</a>, signature (1, 1, 1, -1, -2, -1, 0, 1, 1, 1, 0, 1, -1, 0, -1, -1, -1, 0, 1, 2, 1, -1, -1, -1, 1). %p A008630 (1+x^21)/(1-x)/(1-x^2)/(1-x^3)/(1-x^4)/(1-x^5)/(1-x^6)/(1-x^7) %K A008630 nonn,easy %O A008630 0,3 %A A008630 _N. J. A. Sloane_