A175501 a(n) = the number of divisors of A175500(n).

1, 2, 2, 3, 2, 4, 2, 6, 4, 3, 4, 4, 5, 2, 8, 2, 9, 4, 6, 2, 10, 2, 12, 6, 3, 6, 8, 4, 8, 6, 6, 7, 4, 12, 2, 5, 4, 10, 4, 9, 2, 16, 2, 15, 4, 16, 4, 18, 4, 14, 2, 20, 4, 15, 2, 18, 8, 3, 8, 8, 12, 4, 20, 2, 14, 6, 12, 8, 10, 6, 10, 8, 9, 6, 16, 6, 9, 8, 16, 8

Offset: 1

Author

Leroy Quet, May 31 2010

Keywords

• nonn

Comments

Each ordered pair (a(k),a(k-1)) occurs at most once in the sequence.

Links

• Paul Tek, Table of n, a(n) for n = 1..2473

Crossrefs

Cf. A175500.

Extensions

Terms a(26) and beyond from b-file by Andrew Howroyd, Feb 05 2018