1,2

A122425(a(n)) = A006530(a(n));

A008578 is a subsequence.

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

(Haskell)

a122428 n = a122428_list !! (n-1)

a122428_list = [x | x <- [1..], a122425 x == a006530 x]

-- Reinhard Zumkeller, Feb 05 2015

Cf. A122425, A006530, A122427.

Sequence in context: A046758 A121232 A298746 * A087246 A090421 A109608

Adjacent sequences: A122425 A122426 A122427 * A122429 A122430 A122431

nonn,base

Reinhard Zumkeller, Sep 04 2006

approved