A145554 "Compact" numbers that are neither prime nor a square of a prime; see reference for definition.

57, 87, 93, 117, 145, 177, 189, 205, 219, 237, 249, 261, 267, 301, 321, 327, 345, 387, 393, 415, 447, 453, 471, 477, 485, 515, 519, 535, 555, 591, 597, 625, 639, 657, 669, 681, 687, 699, 717, 723, 747, 783, 795, 801, 807, 835, 849, 873, 895, 903, 925, 933

Offset

1,1

Links

Ray Chandler, Table of n, a(n) for n = 1..3900

Bhupinder Singh Anand, A Minimal Prime Generating Theorem that suggests the Prime Difference is O(pi(p(sqrt(n)))

Crossrefs

Cf. A070566.

Sequence in context: A086097 A172333 A200932 * A111320 A147468 A147036

Adjacent sequences: A145551 A145552 A145553 * A145555 A145556 A145557

Keyword

nonn

Author

Ray Chandler, Oct 13 2008

Status

approved