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%I #11 Jun 11 2019 08:55:55
%S 1,0,0,0,0,0,0,0,0,0,1,-11,66,-286,1001,-3003,8008,-19448,43758,
%T -92378,184757,-352737,646877,-1145837,1971882,-3321890,5541965,
%U -9324315,16231215,-30045015,60090031,-129024511,290305576,-665732936,1523150156,-3431847188
%N First term of n-th difference sequence of (floor(r*k)), r = log(3), k >= 0.
%H Clark Kimberling, <a href="/A325752/b325752.txt">Table of n, a(n) for n = 1..200</a>
%H Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a325/A325752.java">Java program</a> (github)
%t Table[First[Differences[Table[Floor[n*Log[3]], {n, 0, 50}], n]], {n, 1, 50}]
%Y Cf. A002391, A059543.
%K easy,sign
%O 1,12
%A _Clark Kimberling_, Jun 07 2019