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%I #10 Dec 10 2019 03:28:16
%S 5,4,9,7,1,1,7,7,9,4,4,8,6,2,1,5,5,3,8,8,4,7,1,1,7,7,9,4,4,8,6,2,1,5,
%T 5,3,8,8,4,7,1,1,7,7,9,4,4,8,6,2,1,5,5,3,8,8,4,7,1,1,7,7,9,4,4,8,6,2,
%U 1,5,5,3,8,8,4,7,1,1,7,7,9,4,4,8,6,2,1,5,5,3,8,8,4,7,1,1,7,7,9,4
%N Decimal expansion of B(18) = 43867/798, the 18th Bernoulli number.
%C B(6), B(16) and B(18) are the first three Bernoulli numbers whose index is equal to their decimal expansion periodic length, B(16) and B(18) being the smallest such pair of consecutive even-indexed Bernoulli numbers.
%e 54.9711779448621553884711779448621553884...
%t RealDigits[BernoulliB[18], 10, 100] // First
%Y Cf. A021046 (B(6)), A234355 (B(16)).
%K nonn,cons
%O 2,1
%A _Jean-François Alcover_ and _Paul Curtz_, Dec 24 2013
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