A217797 Smallest member of Ormiston prime 5-tuple.

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.

Links

Table of n, a(n) for n=1..9.

Jens Kruse Andersen, Ormiston Tuples

E. W. Weisstein, MathWorld: Rearrangement Prime Pair

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

Adjacent sequences: A217794 A217795 A217796 * A217798 A217799 A217800

Keyword

nonn,base

Author

Giovanni Resta, Oct 12 2012

Status

approved