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A026346
a(n) = a(m) if a(m) has already occurred exactly once and n = a(m)+[ 3m/2 ], else a(n) = least positive integer that has not yet occurred.
3
1, 1, 2, 3, 4, 2, 5, 6, 3, 7, 4, 8, 9, 10, 5, 11, 12, 6, 13, 14, 15, 7, 16, 17, 18, 8, 19, 9, 20, 21, 10, 22, 23, 24, 11, 25, 12, 26, 27, 28, 13, 29, 30, 14, 31, 15, 32, 33, 34, 16, 35, 36, 17, 37, 18, 38, 39, 40, 19, 41, 42, 43, 20, 44, 45, 21, 46
OFFSET
1,3
CROSSREFS
Sequence in context: A243849 A286547 A157000 * A340791 A369422 A361020
KEYWORD
nonn
STATUS
approved