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Search: id:A152279
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| A152279 |
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Number of 7's among the digits of all n-digit primes. |
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+0
10
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| 1, 8, 69, 574, 5520, 52155, 502179, 4882568, 47709672, 468269438, 4610668567
(list; graph; listen)
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OFFSET
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1,2
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CROSSREFS
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Cf. A130817, A152272, A152273, A152274, A152275, A152276, A152277, A152278, A152280, A152281.
Sequence in context: A030992 A091590 A087487 this_sequence A015575 A152109 A124152
Adjacent sequences: A152276 A152277 A152278 this_sequence A152280 A152281 A152282
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KEYWORD
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base,nonn
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AUTHOR
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Jon E. Schoenfield (jonscho(AT)hiwaay.net), Dec 01 2008
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