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A115301 Permutations of decimal digits 1-9 giving three 3-digit primes. 2
127463859, 127643859, 127859463, 127859643, 149257683, 149257863, 149263587, 149263857, 149563827, 149587263, 149653827, 149683257, 149827563, 149827653, 149857263, 149863257, 157463829, 157643829, 157829463, 157829643, 163457829 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

There are 816 such permutations, last six a(811)-a(816) being 983467521, 983521467, 983521647, 983641257, 983647251, 983647521.

LINKS

Eric M. Schmidt, Table of n, a(n) for n = 1..816 (complete sequence)

EXAMPLE

127463859 => 127, 463, 859 all prime; 127643859 => 127, 643, 859 all prime etc.

MATHEMATICA

Select[Permutations[Range[9]], Union[PrimeQ/@FromDigits/@Partition[ #, 3]]--{True}&]

CROSSREFS

Sequence in context: A162450 A319065 A334346 * A256118 A036341 A184648

Adjacent sequences:  A115298 A115299 A115300 * A115302 A115303 A115304

KEYWORD

fini,full,nonn,base

AUTHOR

Zak Seidov, Mar 04 2006

STATUS

approved

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Last modified August 6 09:38 EDT 2020. Contains 336245 sequences. (Running on oeis4.)