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A050021
a(n) = position of n in A050020.
1
1, 4, 12, 20, 3, 11, 15, 19, 36, 2, 40, 10, 44, 87, 14, 48, 18, 78, 35, 5, 95, 39, 138, 69, 9, 99, 43, 86, 211, 13, 30, 47, 241, 159, 17, 215, 77, 34, 64, 21, 245, 163, 94, 150, 38, 288, 137, 68, 124, 8, 249, 98, 318, 236, 42, 85, 141, 495, 210
OFFSET
1,2
LINKS
CROSSREFS
Sequence in context: A009557 A240762 A319259 * A239662 A321769 A133096
KEYWORD
nonn,easy
EXTENSIONS
Three terms corrected by Ivan Neretin, Sep 06 2015
STATUS
approved