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A114331 Observe that A052248(n) = greatest prime divisor q (say) of all composite numbers between p = prime(n) and next prime. There is only one composite number in this range which is divisible by q. Sequence lists these composite numbers. 2
4, 6, 10, 12, 14, 18, 22, 26, 30, 34, 38, 42, 46, 51, 58, 60, 62, 69, 72, 74, 82, 86, 94, 99, 102, 106, 108, 111, 122, 129, 134, 138, 146, 150, 155, 158, 166, 172, 178, 180, 183, 192, 194, 198, 206, 218, 226, 228, 232, 237, 240, 249, 254, 262, 267, 270 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

The uniqueness follows from generalization of Bertrand's Postulate. - Franklin T. Adams-Watters.

LINKS

Table of n, a(n) for n=2..57.

Eric Weisstein's World of Mathematics, Bertrand's Postulate

CROSSREFS

Cf. A052248, A114349.

Sequence in context: A199536 A284883 A134333 * A102070 A026402 A036438

Adjacent sequences:  A114328 A114329 A114330 * A114332 A114333 A114334

KEYWORD

nonn,changed

AUTHOR

N. J. A. Sloane, based on correspondence from Leroy Quet and Hugo Pfoertner, Feb 22 2006

STATUS

approved

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Last modified September 17 08:31 EDT 2019. Contains 327127 sequences. (Running on oeis4.)