Number of length 3+3 0..n arrays with no pair in any consecutive four terms totalling exactly n.

A246482

Number of length 3+3 0..n arrays with no pair in any consecutive four terms totalling exactly n.

Terms

    a(0) =2a(1) =20a(2) =292a(3) =1376a(4) =6534a(5) =20004a(6) =57416a(7) =133664a(8) =293770a(9) =574100a(10) =1073772a(11) =1865280a(12) =3134222a(13) =5007716a(14) =7797904a(15) =11708864a(16) =17227026a(17) =24659604a(18) =34722740a(19) =47856800a(20) =65070742a(21) =86971940a(22) =114932952a(23) =149765856a(24) =193285274a(25) =246549524a(26) =311901436

External references