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 A002441 Squares written in base 8. (Formerly M3408 N1378) 0

%I M3408 N1378

%S 1,4,11,20,31,44,61,100,121,144,171,220,251,304,341,400,441,504,551,

%T 620,671,744,1021,1100,1161,1244,1331,1420,1511,1604,1701,2000,2101,

%U 2204,2311,2420,2531,2644,2761,3100,3221,3344,3471,3620,3751,4104,4241

%N Squares written in base 8.

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%D V. Thébault, Les Récréations Mathématiques. Gauthier-Villars, Paris, 1952, p. 95.

%F a(n) = A007094(A000290(n)). - _Jason Kimberley_, Dec 13 2012

%t Table[BaseForm[n^2,8],{n,5!}] (* _Vladimir Joseph Stephan Orlovsky_, May 12 2010 *)

%t Table[FromDigits[IntegerDigits[n^2, 8]], {n, 60}] (* _Vincenzo Librandi_, Oct 15 2015 *)

%o (MAGMA) [Seqint(Intseq(n^2, 8)): n in [1..60]]; // _Vincenzo Librandi_, Oct 16 2015

%o (PARI) a(n)=fromdigits(digits(n^2,8)) \\ _Charles R Greathouse IV_, Apr 25 2016

%Y Cf. A000290, A007094.

%K nonn,easy,base

%O 1,2

%A _N. J. A. Sloane_

%E More terms from _James A. Sellers_, Sep 08 2000

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Last modified August 10 16:56 EDT 2020. Contains 336381 sequences. (Running on oeis4.)