A080494 a(1) =9, a(n) = smallest multiple of a(n-1) (not equal to 10*a(n-1)) obtained by inserting digits anywhere in a(n-1).

9, 99, 9009, 900900, 90090000, 9009000000, 900900000000, 90090000000000, 9009000000000000, 900900000000000000, 90090000000000000000, 9009000000000000000000, 900900000000000000000000

Offset

1,1

Links

Table of n, a(n) for n=1..13.

Crossrefs

Cf. A080486, A080487, A080488, A080489, A080490, A080491, A080492, A080493.

Sequence in context: A262540 A265203 A078238 * A077710 A088780 A132544

Adjacent sequences: A080491 A080492 A080493 * A080495 A080496 A080497

Keyword

base,nonn

Author

Amarnath Murthy, Mar 18 2003

Extensions

Corrected and extended by Ray Chandler, Oct 11 2003

Status

approved