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A020954
Least k such that A020952(k) = n.
0
1, 0, 2, 4, 8, 16, 10, 64, 18, 22, 20, 1024, 38, 36, 40, 70, 44, 42, 72, 132, 142, 76, 74, 88, 86, 82, 90, 138, 84, 156, 152, 150, 146, 162, 154, 186, 148, 280, 278, 168, 164, 322, 172, 180, 276, 534, 170, 310, 326, 558, 296, 292, 306, 762, 300
OFFSET
1,3
CROSSREFS
Sequence in context: A277858 A366031 A167421 * A070347 A342072 A095915
KEYWORD
nonn
EXTENSIONS
Title simplified, missing a(2)=0 inserted, and more terms from Sean A. Irvine, May 05 2019
STATUS
approved