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A090513 Least m exceeding the previous term such that the concatenation mnm is prime. 1
3, 7, 11, 17, 21, 23, 111, 121, 137, 183, 1003, 1031, 1047, 1081, 1103, 1131, 1153, 1249, 1253, 1273, 1277, 1301, 1317, 1321, 1323, 1333, 1343, 1371, 1387, 1439, 1463, 1467, 1469, 1473, 1549 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

313,727,11311, etc. are primes.

CROSSREFS

Cf. A089749, A090514.

Sequence in context: A049098 A119992 A023249 * A191050 A081515 A184856

Adjacent sequences:  A090510 A090511 A090512 * A090514 A090515 A090516

KEYWORD

base,nonn

AUTHOR

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

EXTENSIONS

More terms from Ray G. Opao (1260(AT)email.com), Nov 18 2004

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Last modified February 16 21:17 EST 2012. Contains 205971 sequences.