A143526 a(n) is the number of divisors of (A005179(n)+1), where A005179(n) is the smallest positive integer with n divisors.

2, 2, 2, 2, 2, 2, 4, 3, 2, 3, 6, 2, 4, 2, 4, 3, 2, 2, 16, 2, 2, 4, 8, 3, 2, 2, 4, 3, 4, 4, 48, 3, 4, 4, 8, 4, 16, 2, 8, 3, 4, 4, 64, 2, 4, 8, 32, 2, 8, 2, 6, 2, 8, 2, 8, 8, 4, 16, 8, 3, 16, 2, 2, 2, 2, 8, 64, 8, 4, 9, 96, 4, 32, 2, 2, 4, 2, 2, 768, 2, 2, 8, 32, 2, 2, 4, 4, 4, 16, 8, 8, 4, 8, 6, 8, 4, 8, 4

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..1000

Formula

a(n) = A000005(A005179(n)+1). - Ray Chandler, Oct 11 2008

Crossrefs

Cf. A000005, A005179, A143525.

Sequence in context: A051702 A073130 A238267 * A072924 A247869 A036263

Adjacent sequences: A143523 A143524 A143525 * A143527 A143528 A143529

Keyword

nonn

Author

Leroy Quet, Aug 22 2008

Extensions

Extended by Ray Chandler, Oct 11 2008

Status

approved