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A361119
a(n) is the least prime factor of A360519(n) with a(1) = 1.
3
1, 2, 2, 5, 3, 2, 2, 5, 3, 2, 2, 7, 3, 3, 2, 2, 11, 3, 2, 2, 7, 5, 2, 2, 7, 3, 2, 2, 13, 3, 2, 2, 5, 3, 2, 2, 11, 5, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 5, 7, 2, 2, 5, 7, 2, 2, 3, 5, 2, 2, 3, 5, 2, 2, 3, 7, 2, 2, 3, 5, 2, 2, 7, 5
OFFSET
1,2
COMMENTS
See A361120 for the greatest prime factors.
LINKS
Rémy Sigrist, PARI program
FORMULA
a(n) = A020639(A360519(n)).
EXAMPLE
A360519(2) = 2*3 so a(2) = 2.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn
STATUS
approved