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A090504 Beginning with 1, numbers such that the differences a(k)-a(k-1) are distinct and every concatenation n>1 is prime. +0
2
1, 3, 7, 21, 27, 39, 101, 169, 239, 247, 263, 291, 381, 391, 447, 489, 509, 531, 619, 699, 821, 981, 1011, 1267, 1367, 1483, 1691, 1777, 2241, 2351, 2403, 2859, 4153, 4793, 5299, 5513, 5553, 5673, 5797, 6813, 7491, 7721, 7861, 8073, 8363, 8409, 9781, 9879 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A090505.

Sequence in context: A091184 A065496 A018479 this_sequence A018548 A003585 A108102

Adjacent sequences: A090501 A090502 A090503 this_sequence A090505 A090506 A090507

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 06 2003

EXTENSIONS

Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Dec 13 2005

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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