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A361118
a(n) = gcd(A360519(n), A360519(n+1)).
5
1, 2, 5, 7, 3, 4, 5, 11, 3, 2, 7, 11, 3, 5, 2, 11, 13, 3, 4, 7, 13, 5, 2, 17, 7, 9, 2, 13, 17, 3, 2, 19, 5, 3, 4, 11, 17, 5, 2, 23, 3, 19, 4, 13, 3, 5, 2, 29, 3, 31, 2, 7, 3, 37, 2, 17, 3, 41, 2, 5, 23, 7, 12, 5, 29, 7, 2, 3, 43, 5, 2, 3, 47, 5, 2, 3, 7, 19, 2
OFFSET
1,2
LINKS
Rémy Sigrist, PARI program
FORMULA
a(n) > 1 for any n > 1.
EXAMPLE
a(7) = gcd(A360519(7), A360519(8)) = gcd(20, 55) = 5.
PROG
(PARI) See Links section.
CROSSREFS
Cf. A360519.
Sequence in context: A291756 A286463 A286362 * A361130 A361128 A309200
KEYWORD
nonn
STATUS
approved