Triangle read by rows: T(n,k) is the number of oriented colorings of the facets of a regular n-dimensional orthotope using exactly k colors. Row n has 2n columns.
A325008
Triangle read by rows: T(n,k) is the number of oriented colorings of the facets of a regular n-dimensional orthotope using exactly k colors. Row n has 2n columns.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =4a(4) =9a(5) =6a(6) =1a(7) =8a(8) =30a(9) =68a(10) =75a(11) =30a(12) =1a(13) =13a(14) =84a(15) =312a(16) =735a(17) =1020a(18) =735a(19) =210a(20) =1a(21) =19a(22) =192a(23) =1122a(24) =4155a(25) =10242a(26) =16380a(27) =15960a(28) =8505a(29) =1890
External references
- oeis: A325008