Triangle read by rows of coefficients for functions and generating functions for the number of achiral color patterns (set partitions) for a row or loop of varying length using exactly n colors (sets).
A305008
Triangle read by rows of coefficients for functions and generating functions for the number of achiral color patterns (set partitions) for a row or loop of varying length using exactly n colors (sets).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =0a(6) =1a(7) =2a(8) =-1a(9) =-2a(10) =1a(11) =2a(12) =-1a(13) =-4a(14) =-2a(15) =1a(16) =3a(17) =-3a(18) =-11a(19) =0a(20) =6a(21) =1a(22) =3a(23) =-3a(24) =-17a(25) =-8a(26) =20a(27) =16a(28) =1a(29) =4
External references
- oeis: A305008