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A146108
Bell numbers (A000110) read mod 18.
7
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, 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, 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
OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..10000 [b-file restored by Georg Fischer, Jul 25 2020]
W. F. Lunnon, P. A. B. Pleasants, and N. M. Stephens, Arithmetic properties of Bell numbers to a composite modulus I, Acta Arithmetica 35 (1979), pp. 1-16.
FORMULA
a(n+39) = a(n). - G. C. Greubel, Feb 01 2016
MATHEMATICA
Mod[BellB[Range[0, 90]], 18] (* Harvey P. Dale, Apr 27 2013 *)
PROG
(Magma) [Bell(n) mod 18: n in [0..100]]; // Vincenzo Librandi, Feb 02 2016
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Feb 07 2009
STATUS
approved