A037242 - OEIS

%I #11 Jan 20 2019 13:21:07

%S 1,1,4,8,17,23,43,58,84,113,155,190,253,307,380,458,557,645,775,892,

%T 1036,1187,1367,1532,1753,1957,2196,2444,2729,2995,3331,3646,4004,

%U 4373,4787,5178,5653,6103,6604,7118

%N Molien series for 3-D group R2+R3.

%D Jaric and Birman, J. Math. Phys. 18 (1977), 1459-1465; 2085.

%H <a href="/index/Mo#Molien">Index entries for Molien series</a>

%H <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (0,2,2,-1,-4,-1,2,2,0,-1).

%F (1+x+2*x^2+4*x^3+8*x^4+4*x^5+2*x^6+x^7+x^8)/(1-x^2)^2/(1-x^3)^2

%t LinearRecurrence[{0,2,2,-1,-4,-1,2,2,0,-1},{1,1,4,8,17,23,43,58,84,113},60] (* _Harvey P. Dale_, Jan 20 2019 *)

%K nonn

%O 0,3

%A _N. J. A. Sloane_.