Triangle read by rows: T(n,k) is the number of achiral colorings of the facets of a regular n-dimensional orthoplex using exactly k colors. Row n has 2^n columns.
A325019
Triangle read by rows: T(n,k) is the number of achiral colorings of the facets of a regular n-dimensional orthoplex using exactly k colors. Row n has 2^n columns.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =4a(4) =3a(5) =0a(6) =1a(7) =19a(8) =141a(9) =394a(10) =450a(11) =180a(12) =0a(13) =0a(14) =1a(15) =306a(16) =33207a(17) =921908a(18) =10359075a(19) =59584470a(20) =197644440a(21) =400752240a(22) =505197000a(23) =386694000a(24) =164656800a(25) =29937600a(26) =0a(27) =0a(28) =0a(29) =0
External references
- oeis: A325019