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Table of n, a(n) for n=1..40.
A000005(a(n)) = n for n <= 4.
4 = max n such that a(n) > 0, a(n) = 0 for n > 4.
Sequence in context: A242915 A066684 A128124 * A141062 A131806 A004518
Adjacent sequences: A182684 A182685 A182686 * A182688 A182689 A182690
Jaroslav Krizek, Nov 27 2010