Number of length 2+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.

A247728

Number of length 2+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.

Terms

    a(0) =8a(1) =90a(2) =456a(3) =1592a(4) =4344a(5) =10098a(6) =20816a(7) =39264a(8) =69000a(9) =114650a(10) =181848a(11) =277560a(12) =409976a(13) =588882a(14) =825504a(15) =1132928a(16) =1525896a(17) =2021274a(18) =2637800a(19) =3396600a(20) =4320888a(21) =5436530a(22) =6771696a(23) =8357472a(24) =10227464a(25) =12418458a(26) =14969976a(27) =17924984a(28) =21329400a(29) =25232850

External references