A064689 Smallest m such that A064672(m) = n.

0, 1, 2, 3, 6, 7, 12, 15, 32, 43, 48, 61, 136, 159, 240, 527, 572, 1009, 1022, 1085, 1910, 2365, 3782, 6377, 13384, 17929, 18736, 25521, 57840, 155021, 258058, 266247, 267278, 278751, 315806, 328269

Offset: 0

Author

Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 09 2001

Keywords

• nonn
• easy

Comments

A064672(a(n)) = n and A064672(m) < n for m < a(n).

Crossrefs

Cf. A064672.

Programs

Haskell

import Data.List (elemIndex)
import Data.Maybe (fromJust)
a064689 = fromJust . (`elemIndex` a064672_list)
-- Reinhard Zumkeller, Apr 27 2012

Extensions

More terms from Vladeta Jovovic, Oct 13 2001

Initial term added and offset adjusted by Reinhard Zumkeller, Apr 27 2012