A280732 - OEIS

%I #16 Jan 11 2017 08:54:45

%S 111,122,133,144,155,166,177,188,199,224,236,248,339,2510,2612,2714,

%T 2816,2918,3412,3515,3618,3721,3824,3927,4416,4520,4624,4728,4832,

%U 4936,5525,5630,5735,5840,5945,6636,6742,6848,6954,7749,7856,7963,8864,8972,9981

%N Numbers whose digit string can be partitioned into three nonempty parts a <= b <= c such that a*b = c.

%C The parts may not start with 0.

%H Lars Blomberg, <a href="/A280732/b280732.txt">Table of n, a(n) for n = 1..10000</a>

%e For n = 2|4|8: 2 <= 4 <= 8, and 2*4=8, so 248 is a term.

%e For n = 5|9|45: 5 <= 9 <= 45, and 5*9=45, so 5945 is a term.

%Y A subset of A280635. Cf. also A280733.

%K nonn,base,easy

%O 1,1

%A _N. J. A. Sloane_, Jan 10 2017

%E More terms from _Lars Blomberg_, Jan 11 2017