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A088088 a(1) = 1, a(n) = smallest multiple of a(n-1) such that every partial concatenation (n >1) is a prime. 1
1, 1, 3, 21, 147, 1029, 103929, 311787, 311787, 311787, 4053231, 28372617, 1447003467, 44857107477, 134571322431, 39967682762007, 5155831076298903, 3542055949417346361, 456925217474837680569, 216125627865598222909137 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..19.

EXAMPLE

11,113,11321, etc. are primes.

CROSSREFS

Cf. A088089.

Sequence in context: A173350 A323203 A169634 * A206638 A037761 A037649

Adjacent sequences:  A088085 A088086 A088087 * A088089 A088090 A088091

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Sep 23 2003

EXTENSIONS

More terms from David Wasserman, Jul 14 2005

STATUS

approved

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Last modified September 26 17:30 EDT 2021. Contains 347670 sequences. (Running on oeis4.)