Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of max(3i-j, 3j-i), as in A204156.
A204157
Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of max(3i-j, 3j-i), as in A204156.
Terms
- a(0) =1a(1) =-1a(2) =-13a(3) =-4a(4) =1a(5) =88a(6) =78a(7) =9a(8) =-1a(9) =-496a(10) =-704a(11) =-260a(12) =-16a(13) =1a(14) =2560a(15) =4960a(16) =3080a(17) =650a(18) =25a(19) =-1a(20) =-12544a(21) =-30720a(22) =-26784a(23) =-9856a(24) =-1365a(25) =-36a(26) =1a(27) =59392a(28) =175616a(29) =197120
External references
- oeis: A204157