Number of symmetric nonnegative integer 8 X 8 matrices with sum of elements equal to 4*n, under action of dihedral group D_4.
A054498
Number of symmetric nonnegative integer 8 X 8 matrices with sum of elements equal to 4*n, under action of dihedral group D_4.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =44a(4) =116a(5) =260a(6) =560a(7) =1100a(8) =2090a(9) =3740a(10) =6512a(11) =10868a(12) =17732a(13) =28028a(14) =43472a(15) =65780a(16) =97955a(17) =143000a(18) =205920a(19) =291720a(20) =408408a(21) =563992a(22) =770848a(23) =1041352a(24) =1394068a(25) =1847560a(26) =2428960a(27) =3165400a(28) =4095640a(29) =5258440
External references
- oeis: A054498