A220968 - OEIS

A220968

Positions in A030229 where odd terms occur.

1, 5, 6, 9, 11, 13, 15, 16, 17, 20, 21, 23, 25, 27, 28, 29, 31, 33, 34, 36, 38, 39, 40, 42, 44, 45, 47, 49, 50, 52, 54, 55, 56, 58, 60, 61, 63, 65, 67, 68, 70, 71, 73, 74, 75, 76, 77, 79, 81, 82, 85, 86, 87, 89, 90, 92, 93, 94, 96, 97, 98, 100, 101, 104, 105

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

A030229(a(n)) mod 2 = 1; A020639(A030229(a(n))) > 2.

LINKS

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

PROG

(Haskell)

import Data.List (findIndices)

a220968 n = a220968_list !! (n-1)

a220968_list = map (+ 1) $ findIndices odd a030229_list