OFFSET
1,1
EXAMPLE
a(1) = 500, which is fIVe hunDreD, so a(2) = concat(1, 5, 500, 500) = 15500500, which is fIVeteen MILLIon fIVe hunDreD thousanD fIVe hunDreD, so a(3) = concat(1, 5, 1000, 1, 50, 50, 1, 1, 5, 500, 500, 500, 1, 5, 500, 500), etc.
CROSSREFS
KEYWORD
nonn,word,less
AUTHOR
Pierre CAMI, Aug 21 2004
STATUS
approved