A030337 Length of n-th run of digit 1 in A003137.

1, 1, 3, 1, 1, 1, 2, 2, 5, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 2, 2, 3, 3, 7, 2, 2, 3, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 4, 2

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A030336, A030338, A030333.

Programs

Haskell

import Data.List (group)
a030337 n = a030337_list !! (n-1)
a030337_list = map length $ filter ((== 1) . head) $ group a003137_list
-- Reinhard Zumkeller, Feb 21 2013