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 A017338 #25 Apr 18 2023 05:02:11 %S A017338 9765625,576650390625,95367431640625,2758547353515625, %T A017338 34050628916015625,253295162119140625,1346274334462890625, %U A017338 5631351470947265625,19687440434072265625,59873693923837890625,162889462677744140625,404555773570791015625,931322574615478515625 %N A017338 a(n) = (10*n + 5)^10. %H A017338 Vincenzo Librandi, <a href="/A017338/b017338.txt">Table of n, a(n) for n = 0..10000</a> %H A017338 <a href="/index/Rec#order_11">Index entries for linear recurrences with constant coefficients</a>, signature (11,-55,165,-330,462,-462,330,-165,55,-11,1). %F A017338 G.f.: -9765625*(x^10 + 59038*x^9 + 9116141*x^8 + 178300904*x^7 + 906923282*x^6 + 1527092468*x^5 + 906923282*x^4 + 178300904*x^3 + 9116141*x^2 + 59038*x + 1)/(x-1)^11. - _Colin Barker_, Nov 14 2012 %F A017338 From _Amiram Eldar_, Apr 18 2023: (Start) %F A017338 a(n) = A017329(n)^10. %F A017338 a(n) = 5^10 * A016762(n). %F A017338 Sum_{n>=0} 1/a(n) = 31*Pi^10/28350000000000. (End) %t A017338 (10 Range[0,20]+5)^10 (* or *) LinearRecurrence[{11,-55,165,-330,462,-462,330,-165,55,-11,1},{9765625,576650390625,95367431640625,2758547353515625,34050628916015625,253295162119140625,1346274334462890625,5631351470947265625,19687440434072265625,59873693923837890625,162889462677744140625},20] (* _Harvey P. Dale_, Jul 18 2021 *) %o A017338 (Magma) [(10*n+5)^10: n in [0..10]]; // _Vincenzo Librandi_, Aug 02 2011 %Y A017338 Cf. A016762, A017329. %K A017338 nonn,easy %O A017338 0,1 %A A017338 _N. J. A. Sloane_