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%I #18 Sep 08 2022 08:45:38
%S 1,1,2,5,15,16,5,13,0,15,1,6,13,1,16,5,5,0,13,5,10,15,15,10,15,13,10,
%T 1,5,2,15,13,14,13,15,12,1,15,10,1,1,2,5,15,16,5,13,0,15,1,6,13,1,16,
%U 5,5,0,13,5,10,15,15,10,15,13,10,1,5,2,15,13,14,13,15,12,1,15,10,1,1,2,5,15
%N Bell numbers (A000110) read mod 18.
%H G. C. Greubel, <a href="/A146108/b146108.txt">Table of n, a(n) for n = 0..10000</a> [b-file restored by _Georg Fischer_, Jul 25 2020]
%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_, Feb 01 2016
%t Mod[BellB[Range[0,90]],18] (* _Harvey P. Dale_, Apr 27 2013 *)
%o (Magma) [Bell(n) mod 18: n in [0..100]]; // _Vincenzo Librandi_, Feb 02 2016
%Y Cf. A000110, A146105, A146106, A146107, A146109, A146110, A146111.
%K nonn
%O 0,3
%A _N. J. A. Sloane_, Feb 07 2009
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