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 A377909 #9 Nov 24 2024 09:23:00 %S A377909 -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,9,18,810,1017,1719,1989,989100,8910027, %T A377909 91002726,100272636,272636199999999999,7263619999999999911, %U A377909 26361999999999991116,636199999999999111620,3619999999999911162015,61999999999991116201512,199999999999111620151224,9999999999111620151224199 %N A377909 a(n) is the unmatched portion of the digit stream A376771 that A303656(n) must match, or -1 if this is the null string. %Y A377909 Summary: the 16 sequences derived from A302656 are A376769-A376776, A377903-A377904, A377906-A377911. %K A377909 sign %O A377909 1,11 %A A377909 _N. J. A. Sloane_, Nov 22 2024