A280732 Numbers whose digit string can be partitioned into three nonempty parts a <= b <= c such that a*b = c.
111, 122, 133, 144, 155, 166, 177, 188, 199, 224, 236, 248, 339, 2510, 2612, 2714, 2816, 2918, 3412, 3515, 3618, 3721, 3824, 3927, 4416, 4520, 4624, 4728, 4832, 4936, 5525, 5630, 5735, 5840, 5945, 6636, 6742, 6848, 6954, 7749, 7856, 7963, 8864, 8972, 9981
Offset: 1
Examples
For n = 2|4|8: 2 <= 4 <= 8, and 2*4=8, so 248 is a term. For n = 5|9|45: 5 <= 9 <= 45, and 5*9=45, so 5945 is a term.
Links
- Lars Blomberg, Table of n, a(n) for n = 1..10000
Extensions
More terms from Lars Blomberg, Jan 11 2017
Comments