A080446 a(1) = 2, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1).

2, 12, 108, 1188, 10692, 117612, 1058508, 11643588, 104792292, 1152715212, 10374436908, 114118805988, 1027069253892, 11297761792812, 101679856135308, 1118478417488388, 10066305757395492, 110729363331350412

Offset

1,1

Comments

Assuming a(2)=12: Same as A080447 from n=2 on, since the author appears to discard any term divisible by 10: 10=5*a(1). - Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

Links

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

Crossrefs

Cf. A080445, A080447, A080448, A080449, A080450, A080451, A080452, A080453.

Sequence in context: A268538 A319291 A265132 * A301411 A217803 A177409

Adjacent sequences: A080443 A080444 A080445 * A080447 A080448 A080449

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