1,1

a(n)= A081260(n) - A081260(n-1) (taking A081260(0) as equal to 0). Sum of first n terms = A081260(n).

Table of n, a(n) for n=1..105.

4 -> 665 -> 56666556666556665 -> ...

Cf. A079000, A079948.

Sequence in context: A146208 A011227 A155907 * A251738 A249022 A270541

Adjacent sequences: A081258 A081259 A081260 * A081262 A081263 A081264

easy,nonn

Matthew Vandermast, Mar 14 2003

approved