Number of length 7+3 0..n arrays with some pair in every consecutive four terms totalling exactly n.

A245957

Number of length 7+3 0..n arrays with some pair in every consecutive four terms totalling exactly n.

Terms

    a(0) =548a(1) =31577a(2) =300304a(3) =2141609a(4) =7972932a(5) =26526337a(6) =67596992a(7) =161991665a(8) =335832580a(9) =669329801a(10) =1217929488a(11) =2155659097a(12) =3584230244a(13) =5837790449a(14) =9084731392a(15) =13912683617a(16) =20579766372a(17) =30053056825a(18) =42704873360a(19) =60046213001a(20) =82587911428

External references