A018870 -id:A018870 - cp's OEIS frontend

A018869 Smallest power of 9 that begins with n.

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

Offset: 1

David W. Wilson

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

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).

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

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

A180690 11^a(n) is smallest power of 11 beginning with n.

Original entry on oeis.org

0, 8, 12, 15, 17, 19, 21, 22, 24, 25, 1, 2, 3, 4, 29, 5, 6, 55, 7, 56, 8, 57, 9, 82, 10, 107, 59, 11, 84, 36, 12, 85, 61, 13, 110, 62, 14, 135, 87, 63, 15, 136, 88, 64, 16, 137, 113, 89, 41, 17, 138, 114, 66, 42, 18, 139, 115, 91, 67, 43, 19, 140, 116, 92, 68, 44, 20, 141, 117, 93

Offset: 1

Daniel Mondot, Sep 17 2010

D. Mondot, Table of n, a(n) for n=1..32699

Cf. A018856, A018870, A180689, A180692.

cp's OEIS Frontend

A018869 Smallest power of 9 that begins with n.

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