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A117155 List of smaller members p of the prime pairs (p,q) mentioned in A117300. 1
2, 11, 17, 29, 41, 59, 71, 1009, 1087, 1093, 1213, 1279, 1297, 1303, 1429, 1447, 1483, 1489, 1549, 1567, 1579, 1609, 1663, 1693, 1783, 1867, 1873, 1993, 1999, 2039, 2083, 2137, 2203, 2239, 2269, 2293, 2347, 2377, 2389, 2437, 2473, 2539, 2617, 2659, 2683 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Smaller of pair of n-digit primes with difference n.

LINKS

Table of n, a(n) for n=1..45.

EXAMPLE

17 is in the sequence because (1) it is a 2-digit prime number, (2) the next 2-digit prime number is 19 and (3) 19-17=2.

1009 is in the sequence because (1) it is a 4-digit prime number, (2) the next 4-digit prime number is 1013 and (3) 1013-1009=4.

CROSSREFS

Cf. A117300.

Sequence in context: A104272 A214934 A233866 * A186782 A141176 A118839

Adjacent sequences:  A117152 A117153 A117154 * A117156 A117157 A117158

KEYWORD

base,nonn

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), Apr 21 2006

EXTENSIONS

Edited by N. J. A. Sloane at the suggestion of Andrew S. Plewe, May 16 2007

STATUS

approved

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Last modified April 21 23:52 EDT 2021. Contains 343156 sequences. (Running on oeis4.)