The (1,4) entry in the matrix M^n, where M is the 4 X 4 matrix [[0,-1,1,0],[0,0,-1,1],[1,1,1,0],[0,1,1,1]].
A122822
The (1,4) entry in the matrix M^n, where M is the 4 X 4 matrix [[0,-1,1,0],[0,0,-1,1],[1,1,1,0],[0,1,1,1]].
Terms
- a(0) =0a(1) =0a(2) =-1a(3) =0a(4) =0a(5) =-1a(6) =1a(7) =2a(8) =3a(9) =10a(10) =19a(11) =35a(12) =71a(13) =131a(14) =240a(15) =446a(16) =810a(17) =1467a(18) =2660a(19) =4792a(20) =8621a(21) =15501a(22) =27814a(23) =49873a(24) =89384a(25) =160079a(26) =286589a(27) =512943a(28) =917813a(29) =1641978
External references
- oeis: A122822