Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8).
A202010
Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8).
Terms
- a(0) =329a(1) =4281a(2) =22865a(3) =80065a(4) =221433a(5) =511257a(6) =1039409a(7) =1942577a(8) =3390393a(9) =5593849a(10) =8817137a(11) =13364177a(12) =19646313a(13) =28112089a(14) =39223825a(15) =53614481a(16) =71956841a(17) =95063497a(18) =123687521a(19) =158858737a(20) =201582329a(21) =252854953a(22) =314267937a(23) =386939601a(24) =472760313
External references
- oeis: A202010