A337008 Product of distinct primes dividing both b(n) and b(n+1), where b(n) = A336957(n).

1, 2, 3, 5, 7, 2, 3, 11, 5, 2, 3, 7, 11, 2, 5, 3, 13, 2, 7, 3, 17, 2, 19, 3, 23, 2, 5, 13, 7, 6, 5, 17, 7, 2, 3, 5, 19, 2, 3, 29, 5, 2, 11, 3, 31, 2, 13, 3, 35, 2, 29, 3, 37, 2, 17, 3, 41, 2, 5, 23, 7, 6, 5, 31, 7, 2, 3, 43, 5, 2, 3, 47, 5, 22, 3, 7, 19, 2, 3, 5, 7, 2, 13, 11, 17, 2, 43, 7

Offset

1,2

Comments

This is the radical (cf. A007947) of A337007. First differs from A337007 at n=34.

Links

N. J. A. Sloane, Table of n, a(n) for n = 1..20000

Crossrefs

Cf. A007947, A336957, A337007.

Sequence in context: A104212 A139751 A076779 * A337007 A074464 A074463

Adjacent sequences: A337005 A337006 A337007 * A337009 A337010 A337011

Keyword

nonn

Author

Scott R. Shannon and N. J. A. Sloane, Aug 11 2020

Status

approved