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A018878 a(n)^8 is smallest eighth power beginning with n. 9
0, 1, 2, 5, 9, 7, 3, 23, 13, 42, 10, 18, 58, 78, 14, 25, 6, 34, 81, 61, 26, 11, 35, 47, 63, 2, 113, 85, 27, 86, 115, 65, 87, 49, 277, 37, 66, 21, 158, 5, 67, 283, 12, 9, 286, 51, 287, 91, 289, 122, 29, 69, 123, 39, 22, 93, 221, 7, 222, 125, 94, 223, 53, 126, 71, 3, 95, 127, 226, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

a(2)=2, because 2^8=256 is the first 8th power with the most significant decimal digit equal to 2;

a(16)=6, because 6^8=1679616 is the first 8th power with two most significant decimal digits equal to 16.

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

FORMULA

a(n^8) = n for n >= 0. - Seiichi Manyama, Jan 30 2017

CROSSREFS

Cf. A018851 (k=2), A018852 (k=3), A018853 (k=4), A018872 (k=5), A018874 (k=6), A018876 (k=7), this sequence (k=8), A018880 (k=9), A018882 (k=10).

Sequence in context: A204913 A198455 A339174 * A021389 A198429 A089578

Adjacent sequences:  A018875 A018876 A018877 * A018879 A018880 A018881

KEYWORD

nonn,base

AUTHOR

David W. Wilson

EXTENSIONS

Added initial 0. - Seiichi Manyama, Jan 30 2017

STATUS

approved

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Last modified July 4 12:27 EDT 2022. Contains 355075 sequences. (Running on oeis4.)