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

1,1

Comments

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

Links

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

Prog

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

Crossrefs

Cf. A220968 (complement).

Sequence in context: A353857 A353848 A330722 * A379865 A207006 A171781

Adjacent sequences: A220966 A220967 A220968 * A220970 A220971 A220972

Keyword

nonn

Author

Reinhard Zumkeller, Dec 27 2012

Status

approved