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A089566 a(1) = 11. For n > 1, a(n) is the least unused number such that every concatenation a(n)a(n-1)...a(2)a(1) is prime. 1
11, 2, 4, 3, 5, 9, 1, 30, 6, 20, 16, 8, 24, 15, 13, 39, 36, 56, 64, 72, 29, 49, 27, 60, 54, 63, 65, 45, 12, 99, 28, 47, 88, 51, 83, 31, 59, 94, 336, 108, 182, 204, 184, 38, 37, 188, 210, 91, 62, 10, 224, 202, 128, 115, 66, 111, 156, 566, 43, 255, 279, 315, 180, 257, 102, 118 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Is this a rearrangement of the natural numbers?
LINKS
CROSSREFS
Sequence in context: A113616 A018800 A258337 * A010191 A064791 A074126
KEYWORD
base,nonn
AUTHOR
Ray Chandler, Nov 22 2003
EXTENSIONS
Edited by Charles R Greathouse IV, Apr 29 2010
STATUS
approved

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Last modified April 22 18:11 EDT 2024. Contains 371906 sequences. (Running on oeis4.)