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 A018785 #13 Nov 19 2022 04:39:22 %S A018785 1,10,13,23,1,7,356,78,3788,78888,258,888888,157,2,688,26,15,128,57, %T A018785 188,15,2688,2688,888888,277,37888,56,25,5,12,258,178,46,8,58,2588,17, %U A018785 77,17,77,17,77,88888,7,5,12,1688,18888,178,37888,46,38,18,36,6,2688,288,488 %N A018785 Terms of A001273 with trailing 9's stripped (at n=13 term becomes periodic with period 49). %H A018785 <a href="/index/Rec#order_49">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1). %F A018785 Period is 2, 688, 26, 15, 128, 57, 188, 15, 2688, 2688, 888888, 277, 37888, 56, 25, 5, 12, 258, 178, 46, 8, 58, 2588, 17, 77, 17, 77, 17, 77, 88888, 7, 5, 12, 1688, 18888, 178, 37888, 46, 38, 18, 36, 6, 2688, 288, 488, 25, 8888888, 25, 7888. %Y A018785 Cf. A001273. %K A018785 nonn,base %O A018785 0,2 %A A018785 _David W. Wilson_