A018867 Smallest power of 8 that begins with n.

1, 262144, 32768, 4096, 512, 64, 73786976294838206464, 8, 9223372036854775808, 1073741824, 1152921504606846976, 1237940039285380274899124224, 134217728, 144115188075855872, 154742504910672534362390528, 16777216

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• base

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..342

Crossrefs

Cf. A018802 (k=2), A018857 (k=3), A018859 (k=4), A018861 (k=5), A018863 (k=6), A018865 (k=7), this sequence (k=8), A018869 (k=9).

Formula

a(n) = 8^A018868(n). - Seiichi Manyama, Jan 29 2017

a(8^n) = 8^n for n >= 0. - Seiichi Manyama, Jan 29 2017