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 A034668 #26 Jul 08 2025 21:26:37 %S A034668 10,124,3410,131068,5732210,264105844,12441770330,591961476748, %T A034668 28294099221410,1355321291969764,64989628053819050, %U A034668 3117943006504850428,149624153907514522610,7181073568202394620884,344670347564106497096570 %N A034668 Sum of n-th powers of divisors of 48. %H A034668 T. D. Noe, <a href="/A034668/b034668.txt">Table of n, a(n) for n = 0..200</a> %H A034668 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (124,-5983,150040,-2180788,19254592,-104677824,345692160,-661671936,658243584,-254803968). %F A034668 a(n) = Sum_{d|48} d^n. - _Wesley Ivan Hurt_, Dec 29 2023 %t A034668 With[{d=Divisors[48]},Table[Total[d^n],{n,0,20}]] (* _Harvey P. Dale_, Aug 14 2012 *) %t A034668 Total[#^Range[0, 20]&/@Divisors[48]] (* _Vincenzo Librandi_, Apr 17 2014 *) %o A034668 (Magma) [DivisorSigma(n,48): n in [0..15]]; // _Vincenzo Librandi_, Apr 17 2014 %Y A034668 Cf. A018261 (divisors of 48). %K A034668 nonn,easy %O A034668 0,1 %A A034668 _N. J. A. Sloane_