1,2

Table of n, a(n) for n=1..18.

a(2)=2 divides the concatenated a(1)a(3)=130. a(3)=30 divides the concatenated a(2)a(4)=240. a(4)=40 divides the concatenated a(3)a(5)=30520.

Cf. A113696.

Sequence in context: A145290 A127026 A105962 * A098827 A280380 A184238

Adjacent sequences: A113692 A113693 A113694 * A113696 A113697 A113698

base,nonn

Amarnath Murthy, Nov 11 2005

Corrected and extended by R. J. Mathar, Aug 31 2007

approved