A031288 Position of n-th 1 in A007376.

1, 10, 12, 13, 14, 16, 18, 20, 22, 24, 26, 28, 33, 53, 73, 93, 113, 133, 153, 173, 190, 193, 195, 196, 199, 202, 205, 208, 211, 214, 217, 220, 221, 223, 224, 225, 226, 227, 229, 230, 232, 233, 235, 236, 238, 239, 241, 242, 244, 245

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• less
• base

Comments

A007376(a(n)) = 1;

a(n) = Min{A031287(n), A031288(n), A031289(n), A031290(n), A031291(n), A031292(n), A031293(n), A031294(n), A031295(n), A031296(n)}. [Reinhard Zumkeller, Jul 28 2011]

Links

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

Crossrefs

Cf. A193428.

Programs

Haskell

import Data.List (elemIndices)
a031288 n = a031288_list !! (n-1)
a031288_list = map (+ 1) $ elemIndices 1 a007376_list
-- Reinhard Zumkeller, Jul 28 2011