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A341991
Multiplicative defect in a natural approximation for the terms of A341617.
1
1, 1, 1, 1, 2, 2, 1, 1, 4, 12, 6, 6, 6, 6, 3, 1, 8, 8, 12, 12, 6, 6
OFFSET
1,5
COMMENTS
A coarse approximation to A341617(n) is the primorial of (n-1), and the terms of this sequence are the quotient A341617(n) divided by the primorial of (n-1).
LINKS
P. Miska and T. Ward, Stirling numbers and periodic points, arXiv:2102.07561 [math.NT], 2021.
FORMULA
a(n) = A341617(n)/radical((n-1)!) = A341617(n)/(n-1)# = A341617(n)/A002110(n-1).
EXAMPLE
For n = 3 it is known that A341617(3) = 2, so a(3) = 2/(3-1)! = 1.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Thomas Ward, Feb 25 2021
STATUS
approved