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A178004 The n-digit prime with the largest number of 6's, the largest of these if there is more than 1. 0 if no such prime exists. 0
0, 67, 661, 6661, 96667, 666667, 9666661, 66666667, 666666667, 6666666661, 66666666667, 669666666661, 6666676666667, 96666666666667, 696666666666661, 6966666666666661, 96666666666666661, 666666666666666661 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
The largest number of 6's in 5-digit primes is 3, achieved by 16661, 26669, 46663, 56663, 60661,..., 76667, 96661, 96667. a(5) is the largest of these, 96667. - R. J. Mathar, Nov 23 2010
CROSSREFS
Sequence in context: A245878 A289867 A142139 * A106106 A093942 A166802
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, May 17 2010
STATUS
approved

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Last modified May 13 19:55 EDT 2024. Contains 372522 sequences. (Running on oeis4.)