A096532 Number of composite numbers not greater than the n-th composite number that do not divide any number not greater than the n-th composite number.

1, 2, 2, 3, 4, 4, 5, 6, 6, 6, 6, 7, 8, 8, 9, 10, 11, 11, 11, 11, 12, 13, 14, 14, 15, 16, 16, 16, 16, 17, 18, 18, 19, 19, 20, 20, 20, 21, 21, 22, 23, 23, 24, 25, 25, 26, 26, 26, 27, 27, 27, 28, 29, 29, 30, 30, 30, 31, 32, 32, 33, 34, 35, 35, 35, 36, 36, 37, 38, 39, 39, 39, 40, 40

Offset

1,2

Comments

a(n) = n - A096533(n).

Links

Table of n, a(n) for n=1..74.

Crossrefs

Cf. A002808.

Sequence in context: A065361 A089792 A081608 * A335380 A077773 A308754

Adjacent sequences: A096529 A096530 A096531 * A096533 A096534 A096535

Keyword

nonn

Author

Reinhard Zumkeller, Jun 23 2004

Status

approved