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%I #12 Sep 08 2022 08:45:38
%S 1,1,2,5,6,7,5,4,0,6,1,6,4,1,7,5,5,0,4,5,1,6,6,1,6,4,1,1,5,2,6,4,5,4,
%T 6,3,1,6,1,1,1,2,5,6,7,5,4,0,6,1,6,4,1,7,5,5,0,4,5,1,6,6,1,6,4,1,1,5,
%U 2,6,4,5,4,6,3,1,6,1,1,1,2,5,6,7,5,4,0,6,1,6,4,1,7,5,5,0,4,5,1,6,6,1,6,4,1
%N Bell numbers (A000110) read mod 9.
%H G. C. Greubel, <a href="/A146099/b146099.txt">Table of n, a(n) for n = 0..10000</a>
%H W. F. Lunnon, P. A. B. Pleasants, and N. M. Stephens, <a href="http://matwbn.icm.edu.pl/ksiazki/aa/aa35/aa3511.pdf">Arithmetic properties of Bell numbers to a composite modulus I</a>, Acta Arithmetica 35 (1979), pp. 1-16.
%F a(n+39) = a(n). - _G. C. Greubel_, Jan 31 2016
%t Mod[BellB[Range[0, 100]], 9] (* _G. C. Greubel_, Jan 31 2016 *)
%o (Magma) [Bell(n) mod 9: n in [0..100]]; // _Vincenzo Librandi_, Feb 01 2016
%Y Cf. A000110, A146095, A146096, A146097, A146098, A146100, A146101, A146102.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Feb 07 2009
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