A136744 Smallest m such that A136743(m) = n.

5, 1, 3, 2, 4, 10, 52, 81, 205, 2089, 5258, 27053, 86885, 506248, 1999385, 15873555, 35291389, 341118861, 1072734242

Offset

1,1

Comments

A136743(a(n)) = n and A136743(m) <> n for m < a(n).

Links

Table of n, a(n) for n=1..19.

Example

a(6)=10: A136743(10) = A001221(A136742(10)) = A001221(39270) =
A001221(2*3*5*7*11*17) = 6.

Crossrefs

Sequence in context: A363437 A338096 A215010 * A068237 A083345 A087262

Adjacent sequences: A136741 A136742 A136743 * A136745 A136746 A136747

Keyword

nonn

Author

Reinhard Zumkeller, Jan 20 2008

Extensions

a(10)-a(19) from Donovan Johnson, Feb 18 2010

Status

approved