

A067861


n is prime and is the concatenation of numbers n_1, n_2, n_3, in that order, with n_1  n_2 = n_3. (Do not allow leading zeros for nonzero n_i.)


0



101, 211, 431, 523, 541, 743, 761, 853, 1019, 1091, 1129, 1367, 1459, 1697, 1789, 13103, 13121, 17107, 19163, 19181, 20173, 22157, 22193, 23167, 23203, 25169, 26251, 29209, 31247, 32257, 34259, 34313, 35323, 37307, 37361, 38299, 38317, 38371, 43403, 46451, 47389, 47407, 49409, 49463, 49481
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OFFSET

1,1


LINKS

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


EXAMPLE

101 is the concatenation of 1, 0, 1 and 10 = 1. 523 is the concatenation of 5, 2, 3 and 52 = 3.


CROSSREFS

Sequence in context: A319744 A303575 A171798 * A142633 A142838 A142910
Adjacent sequences: A067858 A067859 A067860 * A067862 A067863 A067864


KEYWORD

base,nonn


AUTHOR

Joseph L. Pe, Feb 15 2002


EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Jun 11 2002
Corrected and extended by Harvey P. Dale, Mar 19 2015


STATUS

approved



