Number of length n+3 0..4 arrays with some disjoint pairs in every consecutive four terms having the same sum.

A247529

Number of length n+3 0..4 arrays with some disjoint pairs in every consecutive four terms having the same sum.

Terms

    a(0) =185a(1) =317a(2) =561a(3) =1007a(4) =1823a(5) =3455a(6) =6495a(7) =12105a(8) =22459a(9) =43255a(10) =82157a(11) =154279a(12) =287847a(13) =556213a(14) =1059205a(15) =1992823a(16) =3723991a(17) =7202379a(18) =13726813a(19) =25838725a(20) =48308217a(21) =93456427a(22) =178172281a(23) =335410643a(24) =627185919a(25) =1213463869a(26) =2313820457a(27) =4355601755

External references