OFFSET
1,1
EXAMPLE
91 is a term because period(A352747(91, .)) = [34, 60, 86, 21, 47, 73, 8] is zero-free, and 5 and 6 do not divide 91.
PROG
(Sage)
def isA353281(n): return not isA093509(n) and isA353280(n)
def A353281List(upto): return [n for n in range(upto + 1) if isA353281(n)]
print(A353281List(400))
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Apr 10 2022
STATUS
approved