Table T(n,k) = 3^n - 2^k read by antidiagonals.

Terms

a(0) =0a(1) =2a(2) =-1a(3) =8a(4) =1a(5) =-3a(6) =26a(7) =7a(8) =-1a(9) =-7a(10) =80a(11) =25a(12) =5a(13) =-5a(14) =-15a(15) =242a(16) =79a(17) =23a(18) =1a(19) =-13a(20) =-31a(21) =728a(22) =241a(23) =77a(24) =19a(25) =-7a(26) =-29a(27) =-63a(28) =2186a(29) =727