A035533 Number of numbers up to 10^n with exactly 4 divisors.

3, 32, 292, 2608, 23327, 209892, 1903925, 17426119, 160785303, 1493767176, 13959963675, 131125939909, 1237087823423, 11715901648298, 111329815356516, 1061057287085058

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Index entries for sequences related to numbers of primes in various ranges

Crossrefs

Sequence in context: A081012 A187919 A198320 * A278303 A029502 A037792

Adjacent sequences: A035530 A035531 A035532 * A035534 A035535 A035536

Keyword

nonn

Author

Shyam Sunder Gupta

Extensions

a(14)-a(16) from Donovan Johnson, Oct 16 2010

a(15)-a(16) corrected by Donovan Johnson, Nov 11 2012

Status

approved