Number of length 1+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.

A247727

Number of length 1+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum.

Terms

    a(0) =8a(1) =48a(2) =168a(3) =440a(4) =960a(5) =1848a(6) =3248a(7) =5328a(8) =8280a(9) =12320a(10) =17688a(11) =24648a(12) =33488a(13) =44520a(14) =58080a(15) =74528a(16) =94248a(17) =117648a(18) =145160a(19) =177240a(20) =214368a(21) =257048a(22) =305808a(23) =361200a(24) =423800a(25) =494208a(26) =573048a(27) =660968a(28) =758640a(29) =866760

External references