A080449 a(1) = 5, a(n) = smallest (nontrivial) multiple of a(n-1) containing n digits, a(n) not equal to 10*a(n-1). Also a(n) is not divisible by 10.

5, 15, 105, 1155, 10395, 114345, 1029105, 11320155, 101881395, 1120695345, 10086258105, 110948839155, 1220437230705, 10983935076345, 120823285839795, 1087409572558155, 11961505298139705, 107653547683257345

Offset

1,1

Links

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

Crossrefs

Cf. A080445, A080446, A080447, A080448, A080450, A080451, A080452, A080453.

Sequence in context: A121869 A118412 A068622 * A077702 A088418 A080490

Adjacent sequences: A080446 A080447 A080448 * A080450 A080451 A080452

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