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A077615
a(n) is least k such that A077614(k)=n or 0 if there is none.
1
1, 4, 31, 255, 431, 432, 1727, 2700, 21599, 21600, 10800, 10799, 43200, 43199, 80999, 161999, 162000
OFFSET
1,2
CROSSREFS
Cf. A077614.
Sequence in context: A039765 A001091 A309184 * A039306 A376802 A265949
KEYWORD
nonn,more
AUTHOR
Christian G. Bower, Nov 11 2002
EXTENSIONS
a(15)-a(17) from Jinyuan Wang, Jun 29 2022
STATUS
approved