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A076569
Greatest prime divisor of 6n+15 (sum of six successive integers).
0
7, 3, 11, 13, 5, 17, 19, 7, 23, 5, 3, 29, 31, 11, 7, 37, 13, 41, 43, 5, 47, 7, 17, 53, 11, 19, 59, 61, 7, 13, 67, 23, 71, 73, 5, 11, 79, 3, 83, 17, 29, 89, 13, 31, 19, 97, 11, 101, 103, 7, 107, 109, 37, 113, 23, 13, 17, 11, 41, 5, 127, 43, 131, 19, 5, 137, 139, 47, 13, 29, 7
OFFSET
1,1
MATHEMATICA
Table[FactorInteger[6n+15][[-1, 1]], {n, 80}] (* Harvey P. Dale, Aug 20 2014 *)
CROSSREFS
Sequence in context: A138859 A257328 A361416 * A061194 A248280 A255772
KEYWORD
easy,nonn
AUTHOR
Zak Seidov, Oct 19 2002
STATUS
approved