A052247 Maximal value of smallest prime divisors of the 5 composite numbers between A031924(n) and A031925(n).

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

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 A352353 A195380

Adjacent sequences: A052244 A052245 A052246 * A052248 A052249 A052250

Keyword

nonn

Author

Labos Elemer, Feb 01 2000

Status

approved