A018869 Smallest power of 9 that begins with n.

1, 282429536481, 387420489, 4782969, 59049, 6561, 729, 81, 9, 109418989131512359209, 11972515182562019788602740026717047105681, 12157665459056928801, 1350851717672992089

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• base

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..369

Crossrefs

Cf. A018802 (k=2), A018857 (k=3), A018859 (k=4), A018861 (k=5), A018863 (k=6), A018865 (k=7), A018867 (k=8), this sequence (k=9).

Formula

a(n) = 9^A018870(n). - Seiichi Manyama, Jan 29 2017

a(9^n) = 9^n for n >= 0. - Seiichi Manyama, Jan 29 2017