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 A017970 #17 Sep 08 2022 08:44:43 %S A017970 1,4,22,103,484,2270,10648,49943,234256,1098758,5153632,24172676, %T A017970 113379904,531798888,2494357888,11699575548,54875873536,257390662067, %U A017970 1207269217792,5662594565481,26559922791424 %N A017970 Powers of sqrt(22) rounded down. %H A017970 Vincenzo Librandi, <a href="/A017970/b017970.txt">Table of n, a(n) for n = 0..700</a> %F A017970 a(n) = floor(sqrt(22^n)). - _Vincenzo Librandi_, Jun 24 2011 %t A017970 Floor[(Sqrt[22])^Range[0,30]] (* _Harvey P. Dale_, Jul 16 2020 *) %o A017970 (Magma) [Floor(Sqrt(22^n)): n in [0..30]]; // _Vincenzo Librandi_, Jun 24 2011 %o A017970 (PARI) a(n)=sqrtint(22^n) \\ _Charles R Greathouse IV_, Nov 18 2011 %Y A017970 Cf. A010478 (sqrt(22)). %K A017970 nonn %O A017970 0,2 %A A017970 _N. J. A. Sloane_