A080492 a(1) =7, a(n) = smallest multiple of a(n-1) (not equal to 10*a(n-1)) obtained by inserting digits anywhere in a(n-1).

7, 77, 1771, 177100, 17710000, 1771000000, 177100000000, 17710000000000, 1771000000000000, 177100000000000000, 17710000000000000000, 1771000000000000000000, 177100000000000000000000

Offset

1,1

Links

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

Crossrefs

Cf. A080486, A080487, A080488, A080489, A080490, A080491, A080493, A080494.

Sequence in context: A240404 A093980 A077706 * A342347 A082782 A356437

Adjacent sequences: A080489 A080490 A080491 * A080493 A080494 A080495

Keyword

base,nonn

Author

Amarnath Murthy, Mar 18 2003

Extensions

More terms from Ray Chandler, Oct 11 2003

Status

approved