login
A087753
a(n) = least k such that A005185(k)=n; or 0 if there is no such k.
0
1, 3, 4, 6, 7, 9, 0, 12, 16, 15, 18, 20, 0, 25, 0, 24, 32, 0, 36, 31, 35, 38, 41, 43, 50, 53, 0, 52, 0, 51, 65, 48, 64, 0, 67, 0, 71, 66, 69, 63, 79, 77, 80, 81, 86, 84, 87, 90, 0, 104, 0, 98, 110, 99, 116, 100, 125, 108, 0, 105, 123, 114, 129, 96, 139, 115, 0, 118, 142, 0, 126
OFFSET
1,2
CROSSREFS
Cf. A005185.
Sequence in context: A044813 A154661 A275672 * A233334 A320300 A070762
KEYWORD
nonn
AUTHOR
Roger L. Bagula, Oct 02 2003
EXTENSIONS
Edited by N. J. A. Sloane, Nov 08 2005
STATUS
approved