1,10

Table of n, a(n) for n=1..49.

a(13) = 901 because 13 * 901 = 11713, and 1+1+7+1+3 = 13 and 11713 ends with the string "13".

Sequence in context: A252093 A172756 A306304 * A283896 A284439 A119656

Adjacent sequences: A175687 A175688 A175689 * A175691 A175692 A175693

base,nonn

Claudio Meller, Aug 09 2010

approved