A220969 Positions in A030229 where even terms occur.

2, 3, 4, 7, 8, 10, 12, 14, 18, 19, 22, 24, 26, 30, 32, 35, 37, 41, 43, 46, 48, 51, 53, 57, 59, 62, 64, 66, 69, 72, 78, 80, 83, 84, 88, 91, 95, 99, 102, 103, 107, 109, 110, 115, 116, 117, 120, 122, 129, 133, 137, 138, 139, 140, 144, 146, 152, 154, 156, 160

Offset: 1

Author

Reinhard Zumkeller, Dec 27 2012

Keywords

• nonn

Comments

A030229(a(n)) mod 2 = 0; A020639(A030229(a(n))) = 2.

Links

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

Crossrefs

Cf. A220968 (complement).

Programs

Haskell

import Data.List (findIndices)
a220969 n = a220969_list !! (n-1)
a220969_list = map (+ 1) $ findIndices even a030229_list