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A018001 Powers of cube root of 9 rounded to nearest integer. 22

%I #11 Sep 08 2022 08:44:44

%S 1,2,4,9,19,39,81,168,350,729,1516,3154,6561,13647,28388,59049,122827,

%T 255490,531441,1105442,2299412,4782969,9948976,20694705,43046721,

%U 89540788,186252345,387420489,805867092,1676271101,3486784401,7252803827,15086439912

%N Powers of cube root of 9 rounded to nearest integer.

%H Vincenzo Librandi, <a href="/A018001/b018001.txt">Table of n, a(n) for n = 0..200</a>

%t Table[Round[9^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 07 2014 *)

%o (Magma) [Round(9^(n/3)): n in [0..50]]; // _Vincenzo Librandi_, Jan 07 2014

%Y Cf. powers of cube root of k rounded up: A017980 (k=2), A017983 (k=3), A017986 (k=4), A017989 (k=5), A017992 (k=6), A017995 (k=7), this sequence (k=9), A018004 (k=10), A018007 (k=11), A018010 (k=12), A018013 (k=13), A018016 (k=14), A018019 (k=15), A018022 (k=16), A018025 (k=17), A018028 (k=18), A018031 (k=19), A018034 (k=20), A018037 (k=21), A018040 (k=22), A018043 (k=23), A018046 (k=24).

%K nonn

%O 0,2

%A _N. J. A. Sloane_

%E More terms from _Vincenzo Librandi_, Jan 07 2013

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Last modified May 1 11:30 EDT 2024. Contains 372170 sequences. (Running on oeis4.)