Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.
A117250
Triangle T, read by rows, where matrix power T^2 has powers of 2 in the secondary diagonal: [T^2](n+1,n) = 2^(n+1), with all 1's in the main diagonal and zeros elsewhere.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =2a(5) =1a(6) =4a(7) =-4a(8) =4a(9) =1a(10) =-40a(11) =32a(12) =-16a(13) =8a(14) =1a(15) =896a(16) =-640a(17) =256a(18) =-64a(19) =16a(20) =1a(21) =-43008a(22) =28672a(23) =-10240a(24) =2048a(25) =-256a(26) =32a(27) =1a(28) =4325376a(29) =-2752512
External references
- oeis: A117250