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A018074 Powers of fourth root of 10 rounded up. 6
1, 2, 4, 6, 10, 18, 32, 57, 100, 178, 317, 563, 1000, 1779, 3163, 5624, 10000, 17783, 31623, 56235, 100000, 177828, 316228, 562342, 1000000, 1778280, 3162278, 5623414, 10000000, 17782795, 31622777, 56234133, 100000000, 177827942, 316227767, 562341326, 1000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..36.

MATHEMATICA

Ceiling[(Power[10, (4 )^-1])^Range[0, 50]]  (* Harvey P. Dale, Mar 18 2011 *)

PROG

(PARI) a(n) = ceil(10^(n/4)); \\ Michel Marcus, Aug 21 2019

CROSSREFS

Cf. A011007, A017936 (bisection), A308467.

Sequence in context: A203175 A102477 A232582 * A288465 A000067 A133140

Adjacent sequences:  A018071 A018072 A018073 * A018075 A018076 A018077

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms from Michel Marcus, Aug 21 2019

STATUS

approved

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Last modified August 18 10:21 EDT 2022. Contains 356211 sequences. (Running on oeis4.)