A259154 Number of values v whose pi-based arithmetic derivative equals n.

2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 3, 1, 1, 2, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 3, 2, 1, 2, 1, 2, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 2, 3, 2, 2, 2, 1, 2, 1, 1, 2, 2, 1, 2, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 2, 1, 2, 2, 1, 1, 1, 3, 3, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 2, 3, 1, 1, 1, 1, 1, 1, 1, 2

Offset: 0

Author

Alois P. Heinz, Jun 19 2015

Keywords

• nonn

Comments

a(n) > 0 for all n >= 0.

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..20000

Crossrefs

Row lengths of A259153.

Formula

a(n) = |{ v >= 0 : A258851(v) = n }|.