Number of length 5+2 0..n arrays with some pair in every consecutive three terms totalling exactly n.

A245874

Number of length 5+2 0..n arrays with some pair in every consecutive three terms totalling exactly n.

Terms

    a(0) =42a(1) =553a(2) =1764a(3) =4753a(4) =9726a(5) =18505a(6) =31176a(7) =50401a(8) =76050a(9) =111721a(10) =156972a(11) =216433a(12) =289254a(13) =381193a(14) =490896a(15) =625345a(16) =782586a(17) =970921a(18) =1187700a(19) =1442641a(20) =1732302a(21) =2067913a(22) =2445144a(23) =2876833a(24) =3357666a(25) =3902185a(26) =4503996a(27) =5179441a(28) =5920950a(29) =6746761

External references