A050624 Let b(n) = A050623(n) = smallest n-digit number divisible by 3^n; sequence gives b(n)/3^n.

1, 2, 4, 13, 42, 138, 458, 1525, 5081, 16936, 56451, 188168, 627226, 2090752, 6969172, 23230574, 77435244, 258117480, 860391598, 2867971991, 9559906636, 31866355454, 106221184845, 354070616148, 1180235387158, 3934117957192

Offset: 1

Author

Patrick De Geest, Jun 15 1999

Keywords

• nonn
• base

Crossrefs

Cf. A050623.

Formula

a(n) = ceiling(10^(n-1)/3^n). - Vladeta Jovovic, Feb 14 2003

Extensions

More terms from Erich Friedman, Feb 19 2000