Number of -n..n circular arrays x(0..5) of 6 elements with zero sums of x(i) and x(i)*x((i+1) mod 6).

A202008

Number of -n..n circular arrays x(0..5) of 6 elements with zero sums of x(i) and x(i)*x((i+1) mod 6).

Terms

    a(0) =43a(1) =247a(2) =601a(3) =1357a(4) =2467a(5) =4327a(6) =6385a(7) =9445a(8) =12607a(9) =18019a(10) =22549a(11) =30025a(12) =36463a(13) =46435a(14) =57685a(15) =69745a(16) =80911a(17) =97027a(18) =110197a(19) =132901a(20) =152443a(21) =176335a(22) =195817a(23) =225565a(24) =252967a(25) =285127a(26) =314041a(27) =356041a(28) =386695a(29) =441271

External references