|
| |
|
|
A115301
|
|
Permutations of decimal digits 1-9 giving three 3d primes.
|
|
0
| |
|
|
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; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| There are 816 such permutations, last six a(811)-a(816) being 983467521, 983521467, 983521647, 983641257, 983647251, 983647521.
|
|
|
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: A147647 A068249 A162450 * A036341 A184648 A059092
Adjacent sequences: A115298 A115299 A115300 * A115302 A115303 A115304
|
|
|
KEYWORD
| fini,nonn,base
|
|
|
AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Mar 04 2006
|
| |
|
|
