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 A053113 #17 Jul 30 2025 14:06:39 %S A053113 1,55,2200,71500,2002000,50050000,1144000000,24310000000,486200000000, %T A053113 9237800000000,167960000000000,2939300000000000,49742000000000000, %U A053113 817190000000000000,13075040000000000000,204297500000000000000 %N A053113 Expansion of (-1 + 1/(1-10*x)^10)/(100*x); related to A053109. %C A053113 This is the tenth member of the k-family of sequences a(k,n) := k^(n-1)*binomial(n+k,k-1) starting with A000012 (powers of 1), A001792, A036068, A036070, A036083, A036224, A053110-113 for k=1..10. %H A053113 G. C. Greubel, <a href="/A053113/b053113.txt">Table of n, a(n) for n = 0..400</a> %H A053113 W. Lang, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL3/LANG/lang.html">On generalizations of Stirling number triangles</a>, J. Integer Seqs., Vol. 3 (2000), #00.2.4. %H A053113 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (100, -4500, 120000, -2100000, 25200000, -210000000, 1200000000, -4500000000, 10000000000, -10000000000). %F A053113 a(n) = 10^(n-1)*binomial(n+10, 9). %F A053113 G.f.: (-1 + (1-10*x)^(-10))/(x*10^2). %t A053113 Table[10^(n - 1)*Binomial[n + 10, 9], {n, 0, 30}] (* _G. C. Greubel_, Aug 16 2018 *) %t A053113 LinearRecurrence[{100,-4500,120000,-2100000,25200000,-210000000,1200000000,-4500000000,10000000000,-10000000000},{1,55,2200,71500,2002000,50050000,1144000000,24310000000,486200000000,9237800000000},20] (* _Harvey P. Dale_, Jul 30 2025 *) %o A053113 (PARI) vector(30,n,n--; 10^(n-1)*binomial(n+10, 9)) \\ _G. C. Greubel_, Aug 16 2018 %o A053113 (Magma) [10^(n-1)*Binomial(n+10, 9): n in [0..30]]; // _G. C. Greubel_, Aug 16 2018 %K A053113 easy,nonn %O A053113 0,2 %A A053113 _Wolfdieter Lang_