cp's OEIS Frontend

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.

A181357 Sum of squares of digits of Fibonacci(n).

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%I A181357 #11 Jul 24 2019 20:39:43
%S A181357 1,1,4,9,25,64,10,5,25,50,145,33,22,107,37,194,156,109,82,146,134,101,
%T A181357 178,161,103,105,199,125,131,93,183,208,192,255,215,145,209,336,271,
%U A181357 90,169,308,221,197,167,211,223,360,377,280,141,350,225,321,350,256,282
%N A181357 Sum of squares of digits of Fibonacci(n).
%F A181357 a(n) = A003132(A000045(n)). - _Jonathan Vos Post_, Oct 14 2010
%e A181357 a(11) = 145 since Fibonacci(11) = 89 and 8^2 + 9^2 = 64+81 = 145.
%p A181357 A003132 := proc(n) local d; add(d^2,d=convert(n,base,10)) ; end proc:
%p A181357 A181357 := proc(n) A003132(combinat[fibonacci](n)) ; end proc: seq(A181357(n),n=1..90) ; # _R. J. Mathar_, Oct 15 2010
%t A181357 Table[Total[IntegerDigits[Fibonacci[n]]^2],{n,60}] (* _Harvey P. Dale_, Jan 20 2017 *)
%Y A181357 Cf. A000045, A003132.
%K A181357 nonn,base
%O A181357 1,3
%A A181357 _Carmine Suriano_, Oct 14 2010