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 A247274 #5 Sep 11 2014 05:06:04 %S A247274 7,7,4,2,8,1,3,2,6,3,1,5,1,2,1,4,5,3,6,3,1,6,8,6,5,4,0,8,3,3,1,5,8,4, %T A247274 3,6,9,9,2,7,5,1,0,2,8,2,2,1,0,0,7,9,6,1,3,1,9,5,5,0,5,3,7,3,4,7,0,6, %U A247274 7,2,2,0,1,0,7,4,9,2,2,6,2,8,0,9,5,1,1,9,3,6,4,3,3,3,9,4,2,5,1,1,8 %N A247274 Decimal expansion of lambda_3, an analog of the Stolarsky-Harborth constant for the number of elements not divisible by 3 in Pascal's triangle. %D A247274 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 2.16 Stolarsky-Harborth Constant, p. 145. %F A247274 lambda_3 = (3/2)^(1 - log(6)/log(3)). %e A247274 0.774281326315121453631686540833158436992751028221... %t A247274 lambda3 = (3/2)^(1 - Log[6]/Log[3]); RealDigits[lambda3, 10, 101] // First %Y A247274 Cf. A020857, A077464. %K A247274 nonn,cons,easy %O A247274 0,1 %A A247274 _Jean-François Alcover_, Sep 11 2014