This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A018039 #13 Jul 29 2024 18:46:13
%S A018039 1,2,7,22,61,172,484,1356,3800,10648,29836,83601,234256,656394,
%T A018039 1839243,5153632,14440679,40463352,113379904,317694950,890193745,
%U A018039 2494357888,6989288906,19584262410,54875873536,153764355951,430853773030,1207269217792,3382815830942
%N A018039 Powers of cube root of 22 rounded down.
%H A018039 Vincenzo Librandi, <a href="/A018039/b018039.txt">Table of n, a(n) for n = 0..200</a>
%t A018039 Table[Floor[22^(n/3)], {n, 0, 40}] (* _Vincenzo Librandi_, Jan 07 2014 *)
%t A018039 Floor[CubeRoot[22]^Range[0,30]] (* _Harvey P. Dale_, Jul 29 2024 *)
%o A018039 (Magma) [Floor(22^(n/3)): n in [0..40]]; // _Vincenzo Librandi_, Jan 07 2014
%Y A018039 Cf. powers of cube root of k rounded down: A017979 (k=2), A017982 (k=3), A017985 (k=4), A017988 (k=5), A017991 (k=6), A017994 (k=7), A018000 (k=9), A018003 (k=10), A018006 (k=11), A018009 (k=12), A018012 (k=13), A018015 (k=14), A018018 (k=15), A018021 (k=16), A018024 (k=17), A018027 (k=18), A018030 (k=19), A018033 (k=20), A018036 (k=21), this sequence (k=22), A018042 (k=23), A018045 (k=24).
%K A018039 nonn
%O A018039 0,2
%A A018039 _N. J. A. Sloane_
%E A018039 More terms from _Vincenzo Librandi_, Jan 07 2014