Third differences of primes.

Terms

a(0) =-1a(1) =2a(2) =-4a(3) =4a(4) =-4a(5) =4a(6) =0a(7) =-6a(8) =8a(9) =-6a(10) =0a(11) =4a(12) =0a(13) =-2a(14) =-4a(15) =8a(16) =-6a(17) =0a(18) =6a(19) =-6a(20) =4a(21) =0a(22) =-6a(23) =2a(24) =4a(25) =-4a(26) =4a(27) =8a(28) =-20a(29) =12