1,1

Table of n, a(n) for n=1..105.

Sum_{k>0} A122437(k+1)*A100982(k)/2^(A020914(k)-1) = 9.47795555655927473691668101258904...

Cf. A060445 (dropping time of the 3x+1 iteration starting at 2n+1), A100982, A122791.

Sequence in context: A176515 A087017 A065466 * A288241 A199665 A113273

Adjacent sequences: A122787 A122788 A122789 * A122791 A122792 A122793

cons,nonn

T. D. Noe, Sep 11 2006

approved