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A021081
Decimal expansion of 1/77.
0
0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2, 9, 8, 7, 0, 1, 2
OFFSET
0,3
FORMULA
From Chai Wah Wu, Jun 05 2016: (Start)
a(n) = a(n-1) - a(n-3) + a(n-4) for n > 3.
G.f.: x*(1 + x + 7*x^2)/(1 - x + x^3 - x^4). (End)
CROSSREFS
Sequence in context: A274195 A021975 A192599 * A018799 A076219 A077601
KEYWORD
nonn,easy,cons
AUTHOR
STATUS
approved