A128253 Primitive elements of A092671: numbers that may be the largest denominator in an Egyptian fraction for 1.

6, 15, 20, 28, 33, 35, 52, 55, 63, 65, 76, 77, 85, 88, 91, 95, 115, 117, 119, 133, 136, 143, 145, 153, 155, 161, 171, 184, 187, 203, 207, 209, 217, 221, 232, 235, 247, 248, 253, 261, 279, 287, 296, 299, 301, 305, 319, 323, 328, 329, 333, 341, 344, 369, 370, 371

Offset: 1

Author

Franklin T. Adams-Watters, Feb 20 2007

Keywords

• nonn

Comments

"Primitive" terms of A092671 are the terms larger than 1 which are not divisible by any smaller member of that sequence, except for 1.

Crossrefs

Cf. A092671.

Extensions

Definition clarified by M. F. Hasler, Jul 24 2015