Non-vanishing traces of the powers of the adjacency matrix for the simple Lie algebra B_4: 2 * ((2 + sqrt(2))^n + (2 - sqrt(2))^n).
A265185
Non-vanishing traces of the powers of the adjacency matrix for the simple Lie algebra B_4: 2 * ((2 + sqrt(2))^n + (2 - sqrt(2))^n).
Terms
- a(0) =4a(1) =8a(2) =24a(3) =80a(4) =272a(5) =928a(6) =3168a(7) =10816a(8) =36928a(9) =126080a(10) =430464a(11) =1469696a(12) =5017856a(13) =17132032a(14) =58492416a(15) =199705600a(16) =681837568a(17) =2327939072a(18) =7948081152a(19) =27136446464a(20) =92649623552a(21) =316325601280
External references
- oeis: A265185