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 A280811 #22 Jan 08 2017 15:46:39 %S A280811 0,7,5,6,6,0,0,0,0,0,6,6,6,6,6,6,0,0,4,4,4,4,4,4,4,4,4,3,7,7,7,7,7,7, %T A280811 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, %U A280811 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7 %N A280811 First digit to appear n times in the decimal expansion of the Euler-Mascheroni constant gamma. %C A280811 If the 0 before the decimal point is not counted, then a(1) = 5, a(10) = 6, and a(18) = 4. %e A280811 a(3) = 5 because 5 is the first digit to appear 3 times in the decimal expansion of gamma = 0.(5)7721(5)664901(5)... %Y A280811 Cf. A001620, A096567, A195138, A195139, A195141, A195847. %K A280811 nonn,base %O A280811 1,2 %A A280811 _Bobby Jacobs_, Jan 08 2017