A047743 A discrete analog of Li(n): floor ( Sum_{k=2..n} 1/log_2 (k) ).

1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16

Offset

2,3

Links

Table of n, a(n) for n=2..75.

Crossrefs

Sequence in context: A285524 A209356 A099741 * A062299 A157685 A220658

Adjacent sequences: A047740 A047741 A047742 * A047744 A047745 A047746

Keyword

nonn

Author

N. J. A. Sloane

Status

approved