A080489 a(1) =4, a(n) = smallest multiple of a(n-1) (not equal to 10*a(n-1)) obtained by inserting digits anywhere in a(n-1).

4, 24, 264, 20064, 2006400, 200640000, 20064000000, 2006400000000, 200640000000000, 20064000000000000, 2006400000000000000, 200640000000000000000, 20064000000000000000000

Offset

1,1

Links

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

Crossrefs

Cf. A080486, A080487, A080488, A080490, A080491, A080492, A080493, A080494.

Sequence in context: A340023 A192983 A077700 * A101228 A009104 A255440

Adjacent sequences: A080486 A080487 A080488 * A080490 A080491 A080492

Keyword

base,nonn

Author

Amarnath Murthy, Mar 18 2003

Extensions

More terms from Ray Chandler, Oct 11 2003

Status

approved