Values of A063178 on folding point positions of the spiral.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =10a(5) =23a(6) =42a(7) =110a(8) =286a(9) =749a(10) =2059a(11) =7097a(12) =19279a(13) =68211a(14) =246724a(15) =885790a(16) =3234668a(17) =14549030a(18) =53401041a(19) =240993489a(20) =1111160746a(21) =5080272010a(22) =23413163247a(23) =129102470025a(24) =599218203979