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 A146108 #24 Jun 20 2025 12:43:42 %S A146108 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 A146108 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 A146108 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 A146108 Bell numbers (A000110) read mod 18. %H A146108 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 A146108 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. %H A146108 <a href="/index/Rec#order_39">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1). %F A146108 a(n+39) = a(n). - _G. C. Greubel_, Feb 01 2016 [See A054767. - _Jianing Song_, Jun 20 2025] %t A146108 Mod[BellB[Range[0,90]],18] (* _Harvey P. Dale_, Apr 27 2013 *) %o A146108 (Magma) [Bell(n) mod 18: n in [0..100]]; // _Vincenzo Librandi_, Feb 02 2016 %Y A146108 Cf. A000110, A146093-A146122 (Bell numbers read mod 3 to mod 32). %Y A146108 Cf. A054767 (periods). %K A146108 nonn %O A146108 0,3 %A A146108 _N. J. A. Sloane_, Feb 07 2009