Number of ways of 4-coloring the Fibonacci square spiral tiling of n squares with colors introduced in order.

A331394

Number of ways of 4-coloring the Fibonacci square spiral tiling of n squares with colors introduced in order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =6a(7) =7a(8) =11a(9) =16a(10) =19a(11) =25a(12) =38a(13) =51a(14) =63a(15) =88a(16) =127a(17) =165a(18) =214a(19) =303a(20) =419a(21) =544a(22) =731a(23) =1025a(24) =1382a(25) =1819a(26) =2487a(27) =3432a(28) =4583a(29) =6125

External references