id:A065724 - OEIS Search Results

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Primes p such that the decimal expansion of its base 6 conversion is also prime.

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2, 3, 5, 7, 19, 37, 67, 79, 97, 103, 127, 157, 163, 193, 229, 283, 307, 337, 439, 487, 547, 571, 601, 631, 643, 673, 733, 751, 757, 853, 877, 907, 937, 1021, 1033, 1039, 1087, 1093, 1117, 1171, 1249, 1279, 1423, 1567, 1627, 1663, 1723, 1753, 1831, 1873 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`In general rebase notation (Marc LeBrun): p(n) = (6) [p] (10).`
	EXAMPLE	`E.g. 1627{10} = 11311{6} is prime but also 11311{10}.`
	MATHEMATICA	`Select[ Range[1900], PrimeQ[ # ] && PrimeQ[ FromDigits[ IntegerDigits[ #, 6]]] & ]`
	CROSSREFS	`Cf. A065720 up to A065727, A065361.` `Sequence in context: A068803 A048419 A087562 this_sequence A117315 A048420 A048405` `Adjacent sequences: A065721 A065722 A065723 this_sequence A065725 A065726 A065727`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Nov 15 2001.`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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