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.)

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

Offset

1,1

Links

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

Example

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