Talk:Hafner–Sarnak–McCurley constant

The sequence of powers $$a_k$$
Anyone able to say something about what $$a_k$$ is in Vardi's formula? Orthografer (talk) 21:33, 2 February 2011 (UTC)
 * I want to know too.Ofir michael (talk) 14:56, 16 October 2013 (UTC)
 * It would be better to leave Vardi's formula out, if a_k is not going to be explained. JoDu987 (talk) 16:25, 28 December 2013 (UTC)
 * It seems that they are computed from the Taylor coefficients of $$ (1-(1-\sum_{n=1}^\infty (1-z^n))^2) $$; If the power k coefficient is $$b_k$$, then $$ a_m = \sum_{k|m} \mu(k) b_{m/k}/k $$.Ben Standeven (talk) 02:35, 1 September 2014 (UTC)