A090504 Beginning with 1, numbers such that the differences a(k)-a(k-1) are distinct and every concatenation n>1 is prime.

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

Offset

1,2

Links

Table of n, a(n) for n=1..48.

Crossrefs

Cf. A090505.

Sequence in context: A018479 A335411 A331782 * A018548 A323585 A003585

Adjacent sequences: A090501 A090502 A090503 * A090505 A090506 A090507

Keyword

base,nonn

Author

Amarnath Murthy, Dec 06 2003

Extensions

Corrected and extended by David Wasserman, Dec 13 2005

Status

approved