A361329 a(n) = gcd(A361321(n), A361321(n+1)).

1, 2, 5, 7, 3, 11, 2, 7, 13, 3, 5, 11, 7, 2, 13, 5, 17, 2, 19, 3, 17, 7, 10, 3, 23, 7, 19, 5, 2, 23, 13, 11, 2, 29, 5, 3, 2, 31, 5, 23, 2, 37, 5, 3, 29, 7, 2, 41, 3, 31, 7, 2, 43, 3, 37, 7, 2, 47, 3, 53, 2, 59, 3, 61, 2, 65, 3, 67, 2, 71, 3, 73, 2, 79, 3, 11, 17, 2, 19, 11, 23, 2, 17, 13, 19, 2

Offset

1,2

Links

Scott R. Shannon, Table of n, a(n) for n = 1..10000

Example

A361321(3) = 10, A361321(4) = 35, so a(3) = gcd(10,35) = 5;

Crossrefs

Cf. A361321, A000469, A361327, A361328, A361329, A336957, A360519, A361118.

Sequence in context: A140264 A140263 A073929 * A076555 A095928 A100114

Adjacent sequences: A361326 A361327 A361328 * A361330 A361331 A361332

Keyword

nonn

Author

Scott R. Shannon, Rémy Sigrist and N. J. A. Sloane, Mar 15 2023

Status

approved