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A325673
First term of n-th difference sequence of (floor(k*r)), r = -sqrt(7), k >= 0.
3
-3, 0, 1, -3, 6, -9, 9, 0, -27, 81, -162, 243, -243, 0, 729, -2187, 4375, -6579, 6732, -1139, -13719, 32946, -18921, -158355, 851598, -2896919, 8097219, -20058300, 45540943, -96506229, 193012458, -367077447, 667617642, -1166803109, 1968991969, -3225375252
OFFSET
1,1
LINKS
MATHEMATICA
Table[First[Differences[Table[Floor[-Sqrt[7]*n], {n, 0, 30}], n]], {n, 0, 50}]
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Clark Kimberling, May 15 2019
STATUS
approved