First term of n-th difference sequence of (floor(Pi*k/6)), k >= 0.

Terms

a(0) =0a(1) =1a(2) =-2a(3) =4a(4) =-8a(5) =16a(6) =-32a(7) =64a(8) =-128a(9) =256a(10) =-512a(11) =1024a(12) =-2048a(13) =4096a(14) =-8192a(15) =16384a(16) =-32768a(17) =65536a(18) =-131072a(19) =262144a(20) =-524288a(21) =1048576a(22) =-2097151a(23) =4194280a(24) =-8388307a(25) =16774590a(26) =-33536530a(27) =67007280a(28) =-133718550a(29) =266253060