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A217797
Smallest member of Ormiston prime 5-tuple.
1
20847942560791, 21815124622913, 35581541330719, 40546521517819, 47950363950791, 54808830290791, 65923105730719, 84573572180719, 85950417240719
OFFSET
1,1
COMMENTS
Searched up to 10^14.
On 11 October 2012 Jens Kruse Andersen found a 6-tuple starting at 166389896360719, which is likely to be the smallest.
EXAMPLE
a(1) is in the sequence since (20847942560791, 20847942560917, 20847942560971, 20847942561079, 20847942561097) are 5 consecutive primes whose decimal representations contain exactly the same digits.
CROSSREFS
Cf. A072274 (Ormiston pairs), A075093 (Ormiston triples), A161160 (Ormiston quadruples).
Sequence in context: A321137 A064589 A086644 * A255359 A011527 A172543
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Oct 12 2012
STATUS
approved