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

0,3

Comments

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

Links

Table of n, a(n) for n=0..35.

Prog

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

Crossrefs

Cf. A064672.

Sequence in context: A130404 A362009 A365411 * A240175 A238590 A144120

Adjacent sequences: A064686 A064687 A064688 * A064690 A064691 A064692

Keyword

nonn,easy

Author

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

Extensions

More terms from Vladeta Jovovic, Oct 13 2001

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

Status

approved