A096513 Numbers k such that A096509(k) = 2; i.e., the number of prime powers (including primes) in the neighborhood of k with radius ceiling(log(k)) is 2.

2, 36, 37, 38, 42, 48, 52, 53, 55, 73, 87, 88, 92, 93, 94, 96, 97, 113, 114, 116, 117, 118, 120, 121, 137, 138, 139, 140, 141, 142, 144, 146, 147, 148, 149, 150, 156, 158, 159, 160, 180, 181, 182, 183, 184, 186, 188, 189, 190, 200, 201, 202, 203, 205, 217, 221

Offset

1,1

Links

Table of n, a(n) for n=1..56.

Example

k=36 is a term: ceiling(log(36)) = ceiling(3.5835...) = 4, and in [36-4, 36+4] = [32, 40], 32 and 37 are the two corresponding powers of primes.

Crossrefs

Cf. A096508-A096519.

Sequence in context: A353216 A073406 A256060 * A037418 A382176 A239343

Adjacent sequences: A096510 A096511 A096512 * A096514 A096515 A096516

Keyword

nonn

Author

Labos Elemer, Jul 12 2004

Status

approved