Number of length 4+2 0..n arrays with no pair in any consecutive three terms totalling exactly n.

A245999

Number of length 4+2 0..n arrays with no pair in any consecutive three terms totalling exactly n.

Terms

    a(0) =2a(1) =26a(2) =396a(3) =2196a(4) =9582a(5) =29790a(6) =80504a(7) =185192a(8) =391290a(9) =753570a(10) =1371972a(11) =2352636a(12) =3877286a(13) =6128486a(14) =9405552a(15) =13997520a(16) =20363634a(17) =28934442a(18) =40377980a(19) =55306340a(20) =74651742a(21) =99252846a(22) =130367976a(23) =169112376a(24) =217138922a(25) =275894450a(26) =347501364

External references