A030380 Length of n-th run of digit 1 in A030373.

1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 2, 5, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 3, 2, 3, 7, 3, 2, 2, 3, 2, 2, 2, 3, 2, 1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Programs

Mathematica

Length/@Select[Split[Flatten[IntegerDigits[Range[200],4]]],MemberQ[#,1]&] (* Harvey P. Dale, Dec 30 2018 *)