A060826 a(n) is the largest number such that 3^a(n) [also 6^a(n)] divides A025487(n) (least prime signatures).

0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 2, 2, 1, 1, 3, 1, 0, 2, 2, 1, 1, 3, 1, 0, 2, 2, 1, 1, 3, 2, 1, 0, 3, 2, 2, 4, 2, 1, 1, 3, 2, 1, 0, 3, 2, 1, 2, 4, 2, 1, 1, 3, 2, 1, 0, 3, 2, 1, 2, 4, 3, 2, 1, 2, 4, 1, 3, 2, 3, 1, 5, 0, 3, 2, 1, 2, 4, 3, 2, 1, 2, 4, 1, 3, 2, 2, 3, 1, 5, 0, 3, 2, 1, 2, 4, 3, 2

Offset: 1

Author

Henry Bottomley, Apr 30 2001

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A007949, A025487, A036041, A051282, A122841.

Formula

a(n) = A007949(A025487(n)) = A122841(A025487(n)). - Amiram Eldar, Dec 29 2020

Extensions

Name edited and offset corrected by Amiram Eldar, Dec 29 2020