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A105442 Numbers with at least two odd prime factors (not necessarily distinct) such that in binary representation all divisors of n are contained in n. 1
55, 215, 407, 1403, 1681, 3223, 3362, 3415, 6724, 13448, 13655, 15487, 25751, 80089, 146621, 160178, 218455, 237169, 320356, 445663, 464711, 474338, 873815, 948676, 1662743, 1897352, 1932377, 1975531, 2484187, 3223001, 3410639, 3872639 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Intersection of A093641 and A105441;

A087436(a(n)) > 1.

LINKS

Table of n, a(n) for n=1..32.

CROSSREFS

Cf. A093642, A093641.

Sequence in context: A178793 A161763 A189005 * A158646 A294461 A013550

Adjacent sequences:  A105439 A105440 A105441 * A105443 A105444 A105445

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Apr 09 2005

STATUS

approved

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Last modified April 5 03:58 EDT 2020. Contains 333238 sequences. (Running on oeis4.)