A354384 Difference sequence of A356133.

2, 3, 4, 2, 4, 3, 2, 3, 4, 3, 2, 4, 2, 3, 4, 2, 4, 3, 2, 4, 2, 3, 4, 3, 2, 3, 4, 2, 4, 3, 2, 3, 4, 3, 2, 4, 2, 3, 4, 3, 2, 3, 4, 2, 4, 3, 2, 4, 2, 3, 4, 2, 4, 3, 2, 3, 4, 3, 2, 4, 2, 3, 4, 2, 4, 3, 2, 4, 2, 3, 4, 3, 2, 3, 4, 2, 4, 3, 2, 4, 2, 3, 4, 2, 4, 3

Offset: 1

Author

Clark Kimberling, Aug 04 2022

Keywords

• nonn
• easy

Crossrefs

Cf. A026430, A356133, A091855 (positions of 2), A036554 (positions of 3), A091855 (positions of 4).

Programs

Mathematica

u = Accumulate[1 + ThueMorse /@ Range[0, 200]]  (* A026430 *)
v = Complement[Range[Max[u]], u];  (* A356133 *)
Differences[v] (* A354384 *)

Formula

a(n) = A007413(n) + 1.

a(n) = A036580(n) + 2.