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A067289 Numbers n such that the number of divisors of n is floor(prime(n)/n). 0
5, 7, 11, 25, 33, 34, 35, 38, 39, 46, 51, 55, 57, 58, 62, 65, 81, 207, 212, 236, 242, 243, 244, 245, 261, 268, 275, 279, 284, 292, 316, 325, 332, 333, 338, 356, 363, 369, 387, 388, 404, 412, 423, 425, 428, 436, 729, 1065, 1066, 1070, 1074, 1085, 1086, 1090 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

FORMULA

n such that A000005(n)=floor(prime(n)/n)

CROSSREFS

Cf. A000005.

Sequence in context: A075705 A249735 A218394 * A036491 A036490 A106330

Adjacent sequences:  A067286 A067287 A067288 * A067290 A067291 A067292

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Feb 24 2002

STATUS

approved

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Last modified February 19 19:20 EST 2019. Contains 320328 sequences. (Running on oeis4.)