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A127176
Primes with prime "Look And Say" descriptions from left to right (irrespective of method A or method B).
3
3, 7, 17, 23, 113, 137, 193, 271, 431, 479, 587, 691, 757, 809, 829, 1009, 1123, 1181, 1459, 2089, 2111, 2131, 2243, 2273, 2473, 2617, 2671, 3067, 3169, 3607, 3697, 4567, 4603, 5059, 5407, 5749, 6007, 6037, 6449, 6607, 6673, 7207, 7669, 7927, 8089, 8849
OFFSET
1,1
FORMULA
Intersection of A056815 and A127175.
EXAMPLE
137 and 1123, for instance, belong to the sequence because their respective descriptions 111317 (one 1, one 3, one 7) or 113171 (1 once, 3 once 7 once) and 211213 (two 1's, one 2, one 3) or 122131 (1 twice, 2 once, 3 once) are all primes.
CROSSREFS
Sequence in context: A127355 A079470 A056815 * A100343 A085396 A041077
KEYWORD
base,nonn
AUTHOR
Lekraj Beedassy, Jan 07 2007
EXTENSIONS
Corrected and extended by Ray Chandler, Jan 08 2007
STATUS
approved