A089536 Lesser prime factor of semiprimes in A089535.

2, 29, 31, 2, 7, 7, 5, 1188359, 1307, 165864626101044727, 36120307175753, 9772772454840984668059, 8944440848667088469951, 3041407, 6446147951, 48370466980471484946806147635774599979591, 24025609733, 11, 15866068029777944368693, 50031370538856249715800928172618839

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..26

Formula

a(n) = A020639(A089535(n)). - Michel Marcus, Jul 31 2021

a(n) = A089535(n)/A089537(n). - Amiram Eldar, Oct 26 2024

Crossrefs

Cf. A020639, A085745, A089535, A089537.

Sequence in context: A153655 A153657 A140152 * A019379 A107166 A041969

Adjacent sequences: A089533 A089534 A089535 * A089537 A089538 A089539

Keyword

nonn

Author

Ray Chandler, Nov 08 2003

Extensions

a(14) from Donovan Johnson, Sep 05 2008

Offset changed to 1 and more terms from Jinyuan Wang, Jul 30 2021

Status

approved