A355276 Number of n-digit terms in A347475.

2, 2, 1, 4, 4, 6, 3, 8, 9, 12, 11, 18, 33, 37, 40, 43, 64, 77, 71, 118, 135, 167, 241

Offset: 1

Author

M. F. Hasler, Sep 08 2022

Keywords

• nonn
• base
• more

Crossrefs

Cf. A000217 (triangular numbers), A014261 (numbers with only odd digits), A117960 (triangular numbers with only odd digits), A349243 (indices of the former), A347475 (such indices with only odd digits), A349247 (least such k-digit term), A355277 (largest such k-digit term).

Extensions

a(20)-a(23) from Michael S. Branicky, Sep 09 2022