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A132210
a(n) = index j such that A121736(j)=A030649(n).
0
1, 2, 5, 10, 19, 31, 54, 77, 108, 155, 206, 274, 356, 458, 579, 715, 884, 1068, 1270, 1531, 1805
OFFSET
1,2
COMMENTS
A030649 is a subset of A121736 (A. R. Povolotsky, Nov 06 2007). - R. J. Mathar, Nov 16 2007
FORMULA
A121736(a(n))=A030649(n). - R. J. Mathar, Nov 16 2007
EXAMPLE
For n=3, we list the index a(3)=5 because A121736(5)=1463 equals A030649(3).
CROSSREFS
Sequence in context: A325648 A325718 A011893 * A000098 A024827 A304792
KEYWORD
nonn
AUTHOR
EXTENSIONS
Better definition from R. J. Mathar, Nov 16 2007
STATUS
approved