A330741 - OEIS

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A330741

a(n) = gcd(A309639(n), A319626(n)).

3

1, 2, 3, 4, 5, 3, 7, 8, 9, 5, 11, 2, 13, 7, 5, 16, 17, 9, 19, 5, 3, 11, 23, 3, 25, 13, 27, 7, 29, 5, 31, 32, 11, 17, 7, 9, 37, 19, 13, 8, 41, 3, 43, 11, 3, 23, 47, 8, 49, 25, 17, 13, 53, 27, 11, 8, 19, 29, 59, 5, 61, 31, 9, 64, 13, 11, 67, 17, 3, 7, 71, 9, 73, 37, 25, 19, 11, 13, 79, 16, 81, 41, 83, 3, 17, 43, 29, 11, 89, 3

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OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

FORMULA

a(n) = gcd(A309639(n), A319626(n)).

a(n) = n / A330742(n).

PROG

(PARI) A330741(n) = gcd(A309639(n), A319626(n));

CROSSREFS

Cf. A309639, A319626, A330742, A330749.

Sequence in context: A331469 A067620 A343253 * A319677 A349634 A294650

Adjacent sequences: A330738 A330739 A330740 * A330742 A330743 A330744

KEYWORD

nonn

AUTHOR

Antti Karttunen, Dec 29 2019

STATUS

approved