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A325669
First term of n-th difference sequence of (floor(k*r)), r = -sqrt(5), k >= 0.
3
-3, 1, -1, 1, -2, 6, -16, 36, -72, 136, -256, 496, -992, 2016, -4096, 8256, -16512, 32896, -65536, 130816, -261631, 523754, -1048323, 2096152, -4183701, 8324850, -16480855, 32363020, -62784775, 119759850, -223346545, 404492000, -705032195, 1166803110
OFFSET
1,1
LINKS
MATHEMATICA
Table[First[Differences[Table[Floor[-Sqrt[5]*n], {n, 0, 50}], n]], {n, 1, 50}]
CROSSREFS
Sequence in context: A030408 A226048 A329210 * A332488 A068153 A039993
KEYWORD
easy,sign
AUTHOR
Clark Kimberling, May 13 2019
STATUS
approved