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A052247 Maximal value of smallest prime divisors of the 5 composite numbers between A031924(n) and A031925(n). 0
5, 5, 7, 5, 5, 7, 5, 7, 5, 7, 13, 5, 5, 11, 7, 5, 5, 5, 5, 7, 13, 5, 19, 5, 5, 5, 13, 5, 5, 19, 5, 5, 13, 11, 5, 7, 17, 11, 5, 23, 13, 7, 11, 5, 5, 17, 11, 7, 5, 19, 7, 7, 29, 23, 5, 5, 5, 5, 5, 29, 37, 5, 31, 5, 7, 5, 7, 5, 5, 11, 5, 17, 7, 13, 5, 11, 23, 5, 11, 5, 5, 5, 47, 5, 29, 5, 5, 13, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..89.

EXAMPLE

The 5 composites between A031924(1) = 23 and A031925(1) = 29 are 24, 25, 26, 27, 28; their smallest prime divisors are 2 5 2 3 2; the maximal value is 5; so a(1) = 5.

CROSSREFS

A031924, A031925, A052158.

Sequence in context: A011500 A003103 A122273 * A088201 A195380 A139261

Adjacent sequences:  A052244 A052245 A052246 * A052248 A052249 A052250

KEYWORD

nonn

AUTHOR

Labos Elemer, Feb 01 2000

STATUS

approved

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Last modified August 15 22:38 EDT 2018. Contains 313781 sequences. (Running on oeis4.)