A128253 - OEIS

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

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OFFSET

1,1

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.

LINKS

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

CROSSREFS

Cf. A092671.

Sequence in context: A368309 A044439 A348866 * A020886 A093508 A302022

Adjacent sequences: A128250 A128251 A128252 * A128254 A128255 A128256

KEYWORD

nonn

AUTHOR

Franklin T. Adams-Watters, Feb 20 2007

EXTENSIONS

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

STATUS

approved