A018857 Smallest power of 3 that begins with n.

1, 27, 3, 4782969, 59049, 6561, 729, 81, 9, 10460353203, 1162261467, 129140163, 1350851717672992089, 14348907, 1594323, 16677181699666569, 177147, 1853020188851841, 19683, 205891132094649, 2187, 22876792454961

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• base

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..563

Crossrefs

Cf. A018802 (k=2), this sequence (k=3), A018859 (k=4), A018861 (k=5), A018863 (k=6), A018865 (k=7), A018867 (k=8), A018869 (k=9).

Formula

a(n) = 3^A018858(n). - Seiichi Manyama, Jan 29 2017

a(3^n) = 3^n for n >= 0. - Seiichi Manyama, Jan 29 2017