Square array read by antidiagonals downwards: T(k,n) = sum of the site-perimeters of words of length n >= 1 over an alphabet of size k >= 1.

A292767

Square array read by antidiagonals downwards: T(k,n) = sum of the site-perimeters of words of length n >= 1 over an alphabet of size k >= 1.

Terms

    a(0) =4a(1) =6a(2) =10a(3) =8a(4) =28a(5) =18a(6) =10a(7) =72a(8) =74a(9) =28a(10) =12a(11) =176a(12) =281a(13) =152a(14) =40a(15) =14a(16) =416a(17) =1020a(18) =762a(19) =270a(20) =54a(21) =16a(22) =960a(23) =3591a(24) =3664a(25) =1680a(26) =436a(27) =70a(28) =18a(29) =2176

External references