A080445 a(1) = 1, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).

1, 11, 121, 1089, 11979, 107811, 1185921, 10673289, 117406179, 1056655611, 11623211721, 104608905489, 1150697960379, 10356281643411, 113919098077521, 1025271882697689, 11277990709674579, 101501916387071211

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Crossrefs

Cf. A080446, A080447, A080448, A080449, A080450, A080451, A080452, A080453.

Sequence in context: A006940 A070844 A164327 * A033867 A307861 A106473

Adjacent sequences: A080442 A080443 A080444 * A080446 A080447 A080448

Keyword

base,nonn

Author

Amarnath Murthy, Feb 23 2003

Extensions

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

Status

approved