A127176 - OEIS

A127176

Primes with prime "Look And Say" descriptions from left to right (irrespective of method A or method B).

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

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

Cf. A056815, A127175.

Sequence in context: A127355 A079470 A056815 * A100343 A085396 A041077

Adjacent sequences: A127173 A127174 A127175 * A127177 A127178 A127179

KEYWORD

base,nonn

AUTHOR

Lekraj Beedassy, Jan 07 2007

EXTENSIONS

Corrected and extended by Ray Chandler, Jan 08 2007

STATUS

approved