|
| |
|
|
A084375
|
|
Indices of primes which remain prime if any one digit is deleted (leading zeros allowed).
|
|
0
| |
|
|
9, 12, 16, 21, 30, 32, 33, 40, 41, 45, 64, 66, 83, 113, 128, 170, 173, 184, 239, 302, 333, 341, 446, 555, 657, 804, 903, 942, 1194, 1252, 1295, 1345, 2258, 2652, 2943, 3246, 3926, 4205, 4939, 7243, 7318, 8716, 8864, 9028, 9103, 10594, 15249, 28712, 30451
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Primes of this kind (with and without leading zeros) are in A051362 and A034302.. Here more terms are given and question is asked: is this sequence finite? From first 1,000,000 primes only 77 are of this kind.
|
|
|
MATHEMATICA
| The 41st prime is 179, and 17, 19, and 79 are all primes, so 41 is in the sequence. [From Harvey P. Dale, June 20 2011]
|
|
|
CROSSREFS
| Cf. A034302, A051362.
Sequence in context: A084799 A166136 A120154 * A076674 A176062 A027571
Adjacent sequences: A084372 A084373 A084374 * A084376 A084377 A084378
|
|
|
KEYWORD
| nonn,base
|
|
|
AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Jun 23 2003
|
|
|
EXTENSIONS
| Definition corrected by Harvey P. Dale, June 20 2011.
|
| |
|
|
