Number of shapes of grid-filling curves of order 4*n+1 (on the square grid) with turns by +-90 degrees that are generated by Lindenmayer-systems with just one symbol apart from the turns.

A265685

Number of shapes of grid-filling curves of order 4*n+1 (on the square grid) with turns by +-90 degrees that are generated by Lindenmayer-systems with just one symbol apart from the turns.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =6a(4) =0a(5) =33a(6) =39a(7) =0a(8) =164a(9) =335a(10) =0a(11) =603a(12) =2467a(13) =0a(14) =10412a(15) =19692a(16) =0a(17) =79494a(18) =0a(19) =155155a(20) =1271455a(21) =1272243a(22) =0

External references