Triangle read by rows: T(n,k) is the number of unoriented colorings of the faces (and peaks) of a regular n-dimensional simplex using exactly k colors. Row n has C(n+1,3) columns.
A338114
Triangle read by rows: T(n,k) is the number of unoriented colorings of the faces (and peaks) of a regular n-dimensional simplex using exactly k colors. Row n has C(n+1,3) columns.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =3a(4) =1a(5) =1a(6) =32a(7) =693a(8) =7720a(9) =44150a(10) =138312a(11) =247380a(12) =252000a(13) =136080a(14) =30240a(15) =1a(16) =2134a(17) =4971504a(18) =1513872568a(19) =124978335900
External references
- oeis: A338114