Triangle read by rows: T(n,k) is the number of achiral colorings of the facets of a regular n-dimensional orthotope using exactly k colors. Row n has 2n columns.
A325011
Triangle read by rows: T(n,k) is the number of achiral colorings of the facets of a regular n-dimensional orthotope using exactly k colors. Row n has 2n columns.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =4a(4) =3a(5) =0a(6) =1a(7) =8a(8) =28a(9) =36a(10) =15a(11) =0a(12) =1a(13) =13a(14) =84a(15) =282a(16) =465a(17) =360a(18) =105a(19) =0a(20) =1a(21) =19a(22) =192a(23) =1110a(24) =3711a(25) =7080a(26) =7560a(27) =4200a(28) =945a(29) =0
External references
- oeis: A325011