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A105336
a(n) = n*(n+1)/2 mod 128.
0
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 8, 25, 43, 62, 82, 103, 125, 20, 44, 69, 95, 122, 22, 51, 81, 112, 16, 49, 83, 118, 26, 63, 101, 12, 52, 93, 7, 50, 94, 11, 57, 104, 24, 73, 123, 46, 98, 23, 77, 4, 60, 117, 47, 106, 38, 99, 33, 96, 32, 97, 35, 102, 42
OFFSET
0,3
MATHEMATICA
Mod[Accumulate[Range[0, 70]], 128] (* Harvey P. Dale, Oct 16 2013 *)
CROSSREFS
See A105198 for further information.
Sequence in context: A061791 A268291 A374707 * A130910 A105337 A105338
KEYWORD
nonn
AUTHOR
Oscar Takeshita, May 01 2005
STATUS
approved