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

0,1

Comments

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

Links

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

Formula

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

Crossrefs

Row lengths of A259153.

Sequence in context: A293630 A305393 A392014 * A392013 A369933 A374327

Adjacent sequences: A259151 A259152 A259153 * A259155 A259156 A259157

Keyword

nonn

Author

Alois P. Heinz, Jun 19 2015

Status

approved