Triangle T, read by rows, where matrix power T^2 has 2*4^n in the secondary diagonal: [T^2](n+1,n) = 2*4^n, with all 1's in the main diagonal and zeros elsewhere.
A117258
Triangle T, read by rows, where matrix power T^2 has 2*4^n in the secondary diagonal: [T^2](n+1,n) = 2*4^n, with all 1's in the main diagonal and zeros elsewhere.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =-2a(4) =4a(5) =1a(6) =32a(7) =-32a(8) =16a(9) =1a(10) =-2560a(11) =2048a(12) =-512a(13) =64a(14) =1a(15) =917504a(16) =-655360a(17) =131072a(18) =-8192a(19) =256a(20) =1a(21) =-1409286144a(22) =939524096a(23) =-167772160a(24) =8388608a(25) =-131072a(26) =1024a(27) =1a(30) =962072674304a(31) =-42949672960
External references
- oeis: A117258